1. Switching system of first aid platform on water, its characterized in that: the system comprises a processing subsystem and a switching subsystem which are positioned on a traffic supply ship, and an emergency demand subsystem which is positioned at a background;

the first-aid demand subsystem acquires real-time first-aid request information and sends the real-time first-aid request information to the processing subsystem, acquires real-time hydrological information and real-time weather information, performs first-aid prediction on the first-aid demand according to the hydrological information and the real-time weather information to obtain predicted first-aid information, and sends the predicted first-aid information to the processing subsystem;

the processing subsystem generates switching process information according to the predicted emergency information and sends the switching process information to the switching subsystem, the processing subsystem acquires an internally detected real-time position and identifies an emergency location in the real-time emergency request information when receiving the real-time emergency request information, the processing subsystem judges whether the predicted location in the predicted emergency information is the same as the emergency location, when the predicted location is different from the emergency location, the processing subsystem sends a supplementary switching signal to the switching subsystem, when the predicted location is the same as the emergency location, the processing subsystem judges whether the real-time position is the same as the emergency location, and when the real-time position reaches the emergency location, the processing subsystem sends a switching signal to the switching subsystem;

and the switching subsystem is used for performing the preparation switching of the functional areas to be switched on the traffic supply ship according to the switching process information, performing the rapid preparation switching of the functional areas to be switched according to the supplement switching signals, and performing the connection switching of the functional areas to be switched according to the switching signals, wherein the switching process information comprises a primary process, a middle-level process and an end process.

2. The switching system of a first aid platform on water of claim 1, wherein: the first-aid demand subsystem identifies the variable quantity of parameter values in the hydrological information at the previous and later time points, compares the variable quantity with the preset quantity, identifies the type information of the parameter values of which the variable quantity is larger than the preset quantity when the variable quantity is larger than the preset quantity, and generates and predicts first-aid information according to the type information and the real-time weather information.

3. The switching system of a first aid platform on water of claim 2, wherein: the emergency demand subsystem calculates the number value of the judged prediction places, when the number value is larger than a preset value, the emergency demand subsystem calculates the distance value between the prediction places, when the distance value is smaller than a threshold value, the emergency demand subsystem takes the two prediction places with the distance value smaller than the threshold value as a whole, when the distance value is larger than the threshold value, the emergency demand subsystem acquires the traffic information of the prediction places and judges the probability value of the prediction places according to the traffic information and the hydrologic information to add the probability value to the prediction emergency information, and the processing subsystem generates the switching process information of the prediction places with the maximum probability value.

4. The switching system of a first aid platform on water of claim 3, wherein: the emergency demand subsystem identifies traffic time information in the traffic information and identifies abnormal time information of which the variable quantity of parameter values in the hydrological information is larger than a preset quantity, and the emergency demand subsystem judges the coincidence degree of the traffic time information and the abnormal time information and judges the probability value of a prediction place according to the coincidence degree.

5. The switching system of the first aid platform on water of claim 4, wherein: the processing subsystem calculates the driving distance between the real-time position and the predicted place, and sends a switching operation signal of the intermediate process to the switching subsystem according to the driving distance, and the processing subsystem sends a switching operation signal of the ending process to the switching subsystem when the real-time position is the emergency place.

6. The switching system of the first aid platform on water of claim 4, wherein: the processing subsystem sequentially judges the required functional areas at the prediction places according to the arrangement of the probability values from high to low, determines the distribution quantity of the switching process information according to the maximum probability value in the prediction places with the same required functional areas, and sends switching distribution signals to the switching subsystem.

7. The switching system of a first aid platform on water of claim 1, wherein: the processing subsystem acquires a navigation state on the traffic supply ship and judges whether the navigation state is that the traffic supply ship is in navigation, when the navigation state is in navigation, the processing subsystem sends a starting signal for starting prediction to the emergency demand subsystem, and when the navigation state is in navigation stopping, the processing subsystem sends a stopping signal for stopping prediction to the emergency demand subsystem.

8. The switching system of a first aid platform on water of claim 1, wherein: and the processing subsystem carries out switching prompt when the switching is judged to be needed, and sends switching prompt information to the emergency demand subsystem and the switching subsystem for switching prompt.

9. The switching system of a first aid platform on water of claim 8, wherein: the processing subsystem sends switching information to the switching subsystem to perform switching prompt within a first fixed time length, the processing subsystem performs switching prompt within a second fixed time length after the first fixed time length, and the processing subsystem sends switching information to the first-aid demand subsystem after the second fixed time length to perform switching prompt within a third fixed time length.

10. The switching system of a first aid platform on water of any one of claims 1-9, wherein: the emergency demand subsystem comprises a transceiving module for receiving and sending information, a first processing module for judging and processing the information and a prediction module for predicting the information, the processing subsystem comprises a second processing module and a communication module, and the switching subsystem comprises an interaction module, a control module and a plurality of execution modules for executing switching operation.

Background

The water emergency platform is used for carrying out emergency scheduling management on personnel and materials under water emergency conditions based on the existing transportation supply ship, and the transportation supply ship has the main functions of carrying out marine emergency search and rescue and medical rescue. Carry on a plurality of functional areas such as shut down region, medical area and rescue vehicle parking region on the transportation supply ship to adapt to different first aid needs and the first aid demand of water and land environment, guarantee in the emergency rescue in-process goods and materials outfit and the promptness and the accuracy of emergent search and rescue.

Because the cost of the traffic supply ship is high, only one traffic supply ship is usually equipped in a certain area range, and one traffic supply ship has more functions, in the process of performing a rescue cooperation task, if a rescue demand of another target place is received, the traffic supply ship sails to another target place for rescue, however, when the traffic supply ship receives the rescue demand after performing a rescue cooperation task for a period of time and needs to go to perform rescue, the switching of each function area on the traffic supply ship needs a certain time, and the switching of the function areas is performed after arriving at another rescue place, which can cause untimely switching and easily cause incomplete and sufficient switching of the function areas.

Disclosure of Invention

The invention aims to provide a switching system of an overwater first-aid platform, and the switching system is used for solving the problem that each functional area on a traffic supply ship is not switched timely.

The switching system of the overwater first-aid platform comprises a processing subsystem and a switching subsystem which are positioned on a traffic supply ship, and a first-aid demand subsystem which is positioned at a background;

the first-aid demand subsystem acquires real-time first-aid request information and sends the real-time first-aid request information to the processing subsystem, acquires real-time hydrological information and real-time weather information, performs first-aid prediction on the first-aid demand according to the hydrological information and the real-time weather information to obtain predicted first-aid information, and sends the predicted first-aid information to the processing subsystem;

the processing subsystem generates switching process information according to the predicted emergency information and sends the switching process information to the switching subsystem, the processing subsystem acquires an internally detected real-time position and identifies an emergency location in the real-time emergency request information when receiving the real-time emergency request information, the processing subsystem judges whether the predicted location in the predicted emergency information is the same as the emergency location, when the predicted location is different from the emergency location, the processing subsystem sends a supplementary switching signal to the switching subsystem, when the predicted location is the same as the emergency location, the processing subsystem judges whether the real-time position is the same as the emergency location, and when the real-time position reaches the emergency location, the processing subsystem sends a switching signal to the switching subsystem;

and the switching subsystem is used for performing the preparation switching of the functional areas to be switched on the traffic supply ship according to the switching process information, performing the rapid preparation switching of the functional areas to be switched according to the supplement switching signals, and performing the connection switching of the functional areas to be switched according to the switching signals, wherein the switching process information comprises a primary process, a middle-level process and an end process.

The beneficial effect of this scheme is:

acquiring real-time hydrological information and real-time weather information, generating forecast first-aid information, such as water level, flow rate, flood season/ice flood season, runoff quantity and the like, when the variation of the hydrological information is large, generating the forecast first-aid information at the position A, generating switching process information according to the forecast first-aid information, sending the switching process information to a switching subsystem, and performing preparation switching of a functional area to be switched by the switching subsystem, such as preparation switching of cleaning, material and material equipment and the like; when receiving the real-time first-aid request information, judging whether a predicted location in the predicted first-aid information is the same as the first-aid location, performing different switching of functional areas to be switched according to whether the predicted location is the same as the first-aid location, and performing corresponding switching before receiving the real-time first-aid request information, so that the timeliness and the accuracy of switching of a plurality of functional areas on the traffic supply ship are improved; in addition, after the prediction of first aid is carried out according to the hydrological information, when the real-time first aid request information is not received, although the preparation switching is carried out, the switching is not completely finished, and the function of carrying out daily maintenance on a plurality of functional areas on the traffic supply ship can be achieved.

Further, the first-aid demand subsystem identifies the variable quantity of parameter values in the hydrological information at the previous and later time points, compares the variable quantity with the preset quantity, identifies the type information of the parameter values of which the variable quantity is larger than the preset quantity when the variable quantity is larger than the preset quantity, and generates and predicts first-aid information according to the type information and the real-time weather information.

The beneficial effects are that: the method comprises the steps of identifying the variable quantity of parameter values in the hydrological information, identifying type information of the parameter values when the variable quantity is large, for example, the type information of the A basin, such as large flow speed, large runoff and the like, is of a turnover type, predicting first-aid information generated according to the type information and real-time weather information provides first-aid demand for the A basin, and accuracy of predicting the first-aid demand in advance is provided.

Further, the emergency demand subsystem calculates the number value of the judged predicted places, when the number value is larger than a preset value, the emergency demand subsystem calculates the distance value between the predicted places, when the distance value is smaller than a threshold value, the emergency demand subsystem takes the two predicted places with the distance value smaller than the threshold value as a whole, when the distance value is larger than the threshold value, the emergency demand subsystem acquires the traffic information of the predicted places and judges the probability value of the predicted places according to the traffic information and the hydrologic information to add the probability value to the predicted emergency information, and the processing subsystem generates the switching process information of the predicted places with the maximum probability value.

The beneficial effects are that: when a plurality of predicted places are provided, the accuracy of the preliminary switching of the predicted places is improved by calculating distance values between the predicted places, acquiring traffic information of the predicted places according to the distance values, and judging probability values according to the traffic information and hydrologic information of the plurality of predicted places.

Further, the emergency demand subsystem identifies traffic time information in the traffic information and identifies abnormal time information in which the variation of parameter values in the hydrologic information is greater than a preset amount, and the emergency demand subsystem judges the coincidence degree of the traffic time information and the abnormal time information and judges the probability value of the predicted location according to the coincidence degree.

The beneficial effects are that: and judging the probability value according to the coincidence degree of the traffic time information in the traffic information and the abnormal time information in the hydrologic information, so that the accuracy of the probability value is improved, and the accuracy of prediction is improved.

Further, the processing subsystem calculates a travel distance between the real-time position and the predicted location, and sends a switching operation signal of the intermediate process to the switching subsystem according to the travel distance, and the processing subsystem sends a switching operation signal of the ending process to the switching subsystem when the real-time position is the emergency location.

The beneficial effects are that: the driving distance between the real-time position of the traffic supply ship and the emergency place is calculated, the operation of the switching process is determined according to the driving distance, the interference of the functional area in use caused by too early switching time of the functional area is avoided, and the accuracy of switching the functional area in advance is improved.

Further, the processing subsystem sequentially judges the required function areas at the prediction places according to the arrangement of the probability values from high to low, determines the distribution quantity of the switching process information according to the maximum probability value in the same prediction place of the required function areas, and sends switching distribution signals to the switching subsystem.

The beneficial effects are that: and judging the required functional area according to the probability value, determining the distribution quantity of switching process information in the prediction places of the same type of functional areas according to the maximum probability value of the corresponding prediction place of the same required functional area, increasing the range which can be covered by pre-switching, and improving the probability that the emergency place is pre-switched in any prediction place.

Further, the processing subsystem acquires a navigation state on the traffic supply ship and judges whether the navigation state is that the traffic supply ship is in navigation, when the navigation state is in navigation, the processing subsystem sends a starting signal for starting prediction to the emergency demand subsystem, and when the navigation state is in navigation stopping, the processing subsystem sends a stopping signal for stopping prediction to the emergency demand subsystem.

The beneficial effects are that: through obtaining navigation state to judge whether navigation state is in the navigation, if, then carry out the prediction of first aid demand, if not, then stop the prediction of first aid demand, avoid carrying out the redundancy that first aid demand prediction caused all the time, save the required energy consumption of first aid demand prediction.

Further, the processing subsystem carries out switching prompt when the switching is needed, and sends switching prompt information to the emergency demand subsystem and the switching subsystem for switching prompt.

The beneficial effects are that: switching prompts are simultaneously carried out from a plurality of subsystems, the prompting effect is improved, and corresponding personnel can know the switching operation.

Further, the processing subsystem sends switching information to the switching subsystem to perform switching prompt within a first fixed time length, the processing subsystem performs switching prompt within a second fixed time length after the first fixed time length, and the processing subsystem sends switching information to the first-aid demand subsystem after the second fixed time length to perform switching prompt within a third fixed time length.

The beneficial effects are that: the processing subsystem, the switching subsystem and the emergency demand subsystem are sequentially prompted for different durations, the probability that the preparation switching is known is improved, meanwhile, the subsystems are all prompted, and the coverage range of prompting can be increased.

Further, the emergency demand subsystem comprises a transceiver module for receiving and transmitting information, a first processing module for judging and processing the information, and a prediction module for predicting the information, the processing subsystem comprises a second processing module and a communication module, and the switching subsystem comprises an interaction module, a control module and a plurality of execution modules for executing switching operation.

The beneficial effects are that: different functions are realized through different modules, and all parts keep independence and reduce interference.

Drawings

Fig. 1 is a schematic block diagram of a first embodiment of a switching system of the first-aid on water platform of the present invention.

Detailed Description

The following is a more detailed description of the present invention by way of specific embodiments.

Example one

Switching system of the water emergency platform, as shown in fig. 1: the system comprises a processing subsystem and a switching subsystem which are positioned on a traffic supply ship, and an emergency demand subsystem which is positioned at a background; the emergency demand subsystem comprises a receiving and transmitting module for receiving and transmitting information, a first processing module for judging and processing the information, a prediction module for predicting the information and a first prompt module, wherein the receiving and transmitting module can use the existing 3G or 4G communication module, and the first processing module can use the existing background server; the switching subsystem comprises an interaction module, a control module, a third prompt module and a plurality of execution modules for executing switching operation, the interaction module can use the existing 3G or 4G communication module, the control module can use the existing PLC, the execution modules can be a plurality of different cleaning units in a plurality of functional areas on the traffic supply ship, an automatic loading unit of medical materials, an access control unit of the functional areas and the like, and the execution modules are arranged according to actual requirements; the processing subsystem comprises a second processing module, a communication module and a second prompting module, the second processing module can be an SOC chip, and the communication module can be a wireless communicator, such as a communicator model Iridium 9522 b.

The first-aid demand subsystem acquires real-time first-aid request information through the transceiver module and sends the real-time first-aid request information to the processing subsystem, the real-time first-aid request can receive information of a mobile terminal of a user or a background processing subsystem to acquire the real-time hydrologic information and real-time weather information, the real-time hydrologic information and the real-time weather information can be acquired through the background processing subsystem, the first processing module adds time points when receiving the hydrologic information and the real-time weather information and sends the time points to the prediction module, the prediction module performs first-aid prediction on first-aid demand according to the hydrologic information and the real-time weather information to obtain predicted first-aid information, the predicted first-aid information comprises a predicted location and a first-aid type, the first-aid type corresponds to a functional area one by one, and particularly, the prediction module identifies the variable quantity of a parameter value in the hydrologic information at the previous and later time points, for example, parameter values at successive time points are differenced to obtain a variation, for example, variation of parameter values such as radial flow, flow velocity and water level in hydrological information, the prediction module compares the variation with a preset quantity, when the variation is larger than the preset quantity, the preset quantity is set according to actual requirements and difference values of different parameter values, for example, the preset quantity for a water level parameter can be three meters, the prediction module identifies type information of the parameter values with the variation larger than the preset quantity, for example, the type information of the radial flow, the water level and the flow velocity is a submerged type, the type information is obtained through pre-storage, the prediction module generates predicted first-aid information according to the type information and real-time weather information, and the first processing module obtains the predicted first-aid information and sends the predicted first-aid information to the processing subsystem through the transceiver module.

The communication module of the processing subsystem receives the predicted first-aid information, the second processing module acquires the predicted first-aid information and generates switching process information according to the predicted first-aid information, the switching process information comprises a primary process, a middle-level process and an end process, the primary process can be a cleaning process or the positioning of a material loading mechanism, the middle-level process can be a material putting-in loading mechanism, the end process can be the operation of opening a functional area door control and the like at last, the corresponding relation between the predicted first-aid information and the switching process information can be preset, and the second processing module sends the switching process information to the switching subsystem through the communication module; the communication module of the processing subsystem receives the real-time first-aid request information, the second processing module obtains an internally detected real-time position and identifies an first-aid location in the real-time first-aid request information when obtaining the real-time first-aid request information, the second processing module obtains a predicted location in the predicted first-aid information and judges whether the predicted location in the predicted first-aid information is the same as the first-aid location, when the predicted location is different from the first-aid location, the second processing module sends a supplementary switching signal to the switching subsystem through the communication module, when the predicted location is the same as the first-aid location, the second processing module of the processing subsystem judges whether the real-time position is the same as the first-aid location, and when the real-time position reaches the first-aid location, the second processing module sends the.

The interactive module of the switching subsystem receives switching process information, a supplementary switching signal or a switching signal, the control module acquires the switching process information and sends a command to the execution module according to the switching process information to perform the preparatory switching of the to-be-switched functional area on the traffic supply ship, the control module performs the rapid preparatory switching of the to-be-switched functional area according to the supplementary switching signal, and the control module performs the connection switching of the to-be-switched functional area according to the switching signal.

The specific implementation process is as follows:

in the working process of the traffic supply ship, real-time hydrological information and real-time weather information are obtained through a transceiving module of a background first-aid demand subsystem, the hydrological information and the real-time weather information are obtained through a first processing module, the variation of parameter values in the hydrological information is identified, the type information of parameter values is identified when the variation is large, predicted first-aid information is generated according to the type information and the real-time weather information, for example, the predicted first-aid information at the position A is generated when the variation of hydrological information such as water level, flow rate, flood season/ice flood season, runoff and the like is large, the type information of the basin A with large flow rate, large runoff and the like is of a turnover type, the predicted first-aid information generated when the type information and rainstorm serve as the real-time weather information indicates that first-aid demands exist in the basin A, and the predicted first-aid information is sent to a communication module through the transceiving module.

The predicted first-aid information is acquired through the communication module and sent to the second processing module, the second processing module generates switching process information according to the predicted first-aid information, for example, when the predicted first-aid information is an A-place first-aid type and an operation type, the switching process information is a primary process and a middle-level process, when the predicted first-aid information is an B-place transfer vehicle first-aid type, the switching process information is a primary process, and the switching process information is sent to the switching subsystem.

The control module of the switching subsystem performs the preparation switching of the functional area to be switched according to the switching process information, such as the preparation switching of cleaning, material equipment and the like; when the second processing module receives the real-time first-aid request information, the second processing module judges whether the predicted location in the predicted first-aid information is the same as the first-aid location, if the predicted location is the same as the first-aid location, the second processing module judges whether the real-time position is the same as the first-aid location, if the real-time position is the same as the first-aid location, the second processing module sends a switching signal to the switching subsystem, if the predicted location is different from the first-aid location, the processing module sends a supplementary switching signal to the switching subsystem, the switching subsystem performs corresponding switching, and corresponding switching is performed before the real-time first-aid request information is received again, so that timeliness and accuracy of switching of a plurality of functional areas on a traffic supply ship are improved.

In the first embodiment, after the prediction of first aid is performed according to the hydrological information in the working process of the traffic supply ship, when the real-time first aid request information is not received again, although the preparation switching is performed, the switching is not completely completed, and the effect of performing daily maintenance on a plurality of functional areas on the traffic supply ship can be achieved.

Example two

The difference from the first embodiment is that the first processing module of the first aid demand subsystem calculates the number value of the judged predicted locations, when the number value is smaller than the preset value, no operation is performed, when the number value is larger than the preset value, the preset value can be set to be '2', the first processing module calculates the distance value between the predicted locations, when the distance value is smaller than the threshold value, the first processing module takes the two predicted locations with the distance value smaller than the threshold value as a whole, when the distance value is larger than the threshold value, the first processing module acquires the traffic information of the predicted locations and judges the probability value of the predicted locations according to the traffic information and the hydrologic information to be added to the predicted first aid information, the second processing module of the processing subsystem generates the switching process information of the predicted locations with the maximum probability value, the traffic information can be directly acquired from the maritime management department, and the traffic information comprises traffic time information, Channel information and traffic frequency; the process for determining the probability value of the predicted location is specifically that the first processing module identifies traffic time information in the traffic information and identifies abnormal time information in which the variation of the parameter value in the hydrologic information is greater than a preset value, the first processing module determines the coincidence degree of the traffic time information and the abnormal time information, and determines the probability value of the predicted location according to the coincidence degree, for example, the probability value when the coincidence degree is 90% is 0.9.

The accuracy of the preparation switching of the forecasting places is improved by calculating the quantity value of the forecasting places and judging, when a plurality of forecasting places are provided, calculating the distance value between the forecasting places, acquiring the traffic information of the forecasting places according to the distance value, judging the probability value according to the coincidence degree of the traffic time information in the traffic information and the abnormal time information in the hydrologic information, and performing pre-switching according to the probability value.

EXAMPLE III

The difference from the second embodiment is that the second processing module of the processing subsystem calculates the travel distance between the real-time position and the predicted location, and transmits a switching operation signal of the intermediate process to the switching subsystem according to the travel distance, for example, transmits an operation signal of the primary process when the travel distance is within the first range.

The driving distance between the real-time position of the traffic supply ship and the emergency place is calculated, and the operation of switching the process is determined according to the driving distance, so that the interference of the functional area in use caused by too early switching time of the functional area is avoided, and the accuracy of switching the functional area in advance is improved.

Example four

The difference from the second embodiment is that the second processing module sequentially judges the required function areas at the prediction sites according to the highest probability values in the prediction sites with the same probability values from high to low, determines the distribution number of the switching process information according to the maximum probability values in the prediction sites with the same required function areas, and sends switching distribution signals to the switching subsystem, for example, the distribution numbers of the B site, the C site and the D site with the same function areas are 0.9, 0.6, 0.8, the distribution number of the B site is 2, the switching distribution signals are the switching of the primary process and the intermediate process, the distribution number of the D site is 1, the switching distribution signals are the switching of the primary process, the distribution number of the C site is 0, and the preliminary switching is not performed.

And judging the required functional area according to the size of the probability value, determining the distribution quantity of the switching process information according to the maximum probability value of the corresponding prediction place of the same required functional area, increasing the coverage range of pre-switching, and improving the probability of pre-switching the emergency place to any prediction place.

EXAMPLE five

The first embodiment is different from the first embodiment in that a second processing module of the processing subsystem acquires a navigation state on the traffic supply ship, the navigation state includes a navigation state and a stop navigation state, the navigation state is acquired directly from a cab control system of the traffic supply ship, the second processing module judges whether the navigation state is that the traffic supply ship is in navigation, when the navigation state is in navigation, the second processing module sends a start signal for starting prediction to the emergency demand subsystem, and when the navigation state is stop navigation, the second processing module sends a stop signal for stopping prediction to the emergency demand subsystem.

In the working process of the traffic supply ship, the navigation state is judged, and whether prediction emergency information pre-judgment is carried out or not is determined according to the navigation state, so that more energy is saved, and the operation data volume of the system is reduced.

EXAMPLE six

The difference from the first embodiment is that the second processing module of the processing subsystem performs a switching prompt when the switching is determined to be needed, and sends a switching prompt message to the first-aid requiring subsystem and the switching subsystem for performing the switching prompt, specifically, the second processing module sends the switching message to the switching subsystem for performing the switching prompt within a first fixed time length, the second processing module performs the switching prompt within a second fixed time length after the first fixed time length, the second processing module sends the switching message to the first-aid requiring subsystem for performing the switching prompt within a third fixed time length after the second fixed time length, the switching prompt is performed by sound, the first fixed time length is longer than the second fixed time length, the second fixed time length is longer than the third fixed time length, the first fixed time length is equal to a preset multiple of the second fixed time length, the second fixed time length is equal to a preset multiple of the third fixed time length, the second processing module generates the preset multiple according to the functional area to be switched, for example, the preset multiple of the rescue vehicle parking area to be the functional area to be switched can be six times, and the preset multiple of the medical area to be the functional area to be switched can be three times, so that the switching of different functional areas can be completely switched within a certain time, and the noise interference caused by continuous prompt after the switching of the functional areas at the long end is completed in partial switching can be avoided.

Through the continuous suggestion of different duration, let many sides can both know the switching operation to the length of time is the longest for the suggestion of switching subsystem department, and the personnel of the switching subsystem department of the suggestion of being convenient for prevent that switching subsystem department personnel from receiving the injury because of the switching operation.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.