1. An automatic warehouse management system of power metering equipment, comprising: the system comprises an intercom robot, a machine trolley, a conveying line and a server;

the talkback robot is used for submitting an inventory display request to the server according to the received manual voice input and displaying inventory data, and is also used for converting the received manual voice input into a running command for controlling the machine trolley, and the machine trolley is used for carrying or sorting the metering equipment according to the running command;

the conveying line is used for storing metering equipment in a classified mode, and the talkback robot is further used for controlling the conveying line to enter and exit the warehouse metering equipment according to received manual voice input;

the server also receives a request from the intercom robot to send inventory data;

the machine trolley, the conveying line and the server are respectively in signal connection with the talkback robot.

2. The power metering device automated warehouse management system of claim 1, further comprising: the system comprises a radio frequency identification door, wherein the radio frequency identification door is used for reading an electronic tag of the metering equipment in and out of a warehouse, the electronic tag records equipment information, the talkback robot receives the electronic tag from the radio frequency identification door, the talkback robot is also used for sending the metering equipment in and out of the warehouse data to the server, and the radio frequency identification door is in signal connection with the talkback robot.

3. The power metering device automated warehouse management system of claim 2, wherein the radio frequency identification door reads at least two electronic tags at a time.

4. The power metering device automated warehouse management system of claim 3, further comprising: and the monitor is used for monitoring the warehouse management system and is in signal connection with the talkback robot.

5. The power metering device automated warehouse management system of claim 4, wherein the intercom robot comprises: the voice input module is used for collecting artificial voice, the controller is used for submitting a request to the server according to the artificial voice from the voice input module, and the loudspeaker is used for playing an artificial voice response prompt message;

the loudspeaker and the voice input module are respectively electrically connected with the controller.

6. The power metering device automated warehouse management system of claim 5, wherein the intercom robot further comprises: the talkback robot is also used for regularly controlling the alarm lamp to flicker to prompt inventory checking through the timing of the system clock;

the system clock and the alarm lamp are respectively electrically connected with the controller.

7. The power metering device automated warehouse management system of claim 6, wherein the intercom robot further comprises: the display module is used for displaying the inventory data, and the talkback robot display module is a holographic projection display.

8. The power metering device automated warehouse management system of claim 7, further comprising: and the intercommunication robot and the server are connected to the internet through the networking terminal to realize the data connection between the intercommunication robot and the server.

9. The power metering device automated warehouse management system of claim 8, further comprising: and the mobile terminal is used for inquiring the inventory data from the server, and is in communication connection with the server.

10. The automated power metering device warehouse management system of claim 9, wherein the mobile terminal is a tablet computer or a cell phone.

Background

The intelligent enterprise is in an artificial intelligence era, intelligence and automation are beneficial to promoting the progress of the enterprise, and the future development trend of the enterprise is intelligence and automation. The metering assets in the metering storeroom are like guns and grains which depend on the metering during the fight, and the metering storeroom plays an important role. However, the traditional storehouse has low automation level, and is delivered out of the warehouse, warehoused and checked by manually scanning codes and recording, and when recording errors happen occasionally, reworking and overtime checking are needed, so that human resources and time cost are consumed. Therefore, the development of the storeroom and the enterprise work are not split, and the intelligent storeroom is formed only by integrating and matching with the trend of the times.

Most warehouses are equipped with an item warehouse management system that assists in managing the warehouse items. The existing article warehousing management system adopts a mode of combining a computer with a manual mode to carry out article warehousing management, the computer updates an article account according to the number of manually input articles, the access of the articles is completed manually, and the manual article accessing mode sometimes has errors, so that real articles need to be frequently checked and counted, the consistence of the article account is expected, and for a warehouse with many articles, the manual article accessing needs to consume longer searching time; in addition, in order to be able to visually identify the objects on the object shelf, all the stored objects must be supplemented with labels and laid open, which wastes more storage space, and the stored objects have more dust after being stored for a long time, which affects the use of the objects.

The intelligent warehousing system also has the defect of intelligent control and management of the logistics process, and the internet of things and logistics informatization only stay in general applications such as identification, automatic perception, automatic positioning, process tracing, online tracking, online scheduling and the like of articles, so that the problems of low logistics information processing efficiency, insufficient positioning accuracy, insufficient utilization of logistics equipment and the like exist. For example, in the material picking process, it is usually the case that a worker or an intelligent picking vehicle first arrives at a designated picking station, a sensor signal or a manual trigger is used to trigger the material handling equipment to work, and the material handling equipment carries the material to the picking station, i.e. the picking of a target cargo is completed.

The material information management technology is mainly a mode of combining a software information system with manual checking, namely, materials in a warehouse are managed through unique identification of each piece of goods, and when the goods are put in or taken out of the warehouse, the goods are checked according to the unique identification scanned in advance, so that the situation that the goods are put in or taken out of the warehouse and part of the goods are not registered in the warehouse is avoided, but nevertheless, the storage material management mode generally has the following defects: firstly, the work flow of material warehouse-in and warehouse-out consumes long time; secondly, the quantity and the type of the materials in and out of the warehouse are not checked accurately and easily to make mistakes; thirdly, the inventory efficiency in the warehouse is low, and the real-time condition and the quantity of materials in the warehouse cannot be accurately controlled; and fourthly, a paper work order needs to be printed, so that the management is inconvenient, the work order needs to be manually input, the server data is manually updated, and the automatic synchronization of the terminal data is not supported. Further, the management cost and manpower cost in the material storage management are increased virtually, and the efficiency is not high, so that it is necessary to further improve the architecture and implementation manner of such a system on the basis of the above.

The invention discloses a system and a method for the RFID-based warehouse material fine real-time monitoring management, which belongs to a material warehousing management system, and the management system comprises an RFID tag, a server, a management computer, an RFID reader-writer and an industrial personal computer, wherein the management computer is matched with the industrial personal computer in the system, various work orders generated in advance by the management computer are used as the only basis for checking the material warehousing and ex-warehouse by the industrial personal computer, the stored material is ensured to be in a controllable state in the warehousing and ex-warehouse process, the industrial personal computer synchronously updates the data in the server after completing corresponding operation, the data in the server is ensured to be consistent with the actual state, manual entry is not needed, the work efficiency of material warehousing is effectively improved, meanwhile, the RFID-based warehouse material fine real-time monitoring and management system provided by the invention has the advantages of simple structure, easiness in realization, suitability for various logistics storage places and wide application range.

From the disclosure of the patent, the patent realizes the functions of management and control by the way of matching the management computer and the industrial personal computer, but in the patent, how to realize the automatic picking and placing process of the warehouse materials is not disclosed, and the material management still needs manual operation for part of work.

Disclosure of Invention

The invention provides an automatic warehouse management system for electric power metering equipment, which is used for solving the problems that in the prior art, the automation degree of the electric power metering equipment for warehouse entry and warehouse exit is low, the efficiency of the electric power metering equipment for warehouse entry and warehouse exit depending on manual work is low, and mistakes are easy to make.

The invention adopts the following technical scheme:

an automatic inventory management system for a power metering device, comprising: the system comprises an intercom robot, a machine trolley, a conveying line and a server;

the talkback robot is used for submitting an inventory display request to the server according to the received manual voice input and displaying inventory data, and is also used for converting the received manual voice input into a running command for controlling the machine trolley, and the machine trolley is used for carrying or sorting the metering equipment according to the running command;

the conveying line is used for storing metering equipment in a classified mode, and the talkback robot is further used for controlling the conveying line to enter and exit the warehouse metering equipment according to received manual voice input;

the server also receives a request from the intercom robot to send inventory data;

the machine trolley, the conveying line and the server are respectively in signal connection with the talkback robot.

Further, still include: the system comprises a radio frequency identification door, wherein the radio frequency identification door is used for reading an electronic tag of the metering equipment in and out of a warehouse, the electronic tag records equipment information, the talkback robot receives the electronic tag from the radio frequency identification door, the talkback robot is also used for sending the metering equipment in and out of the warehouse data to the server, and the radio frequency identification door is in signal connection with the talkback robot.

Further, the radio frequency identification door reads at least two electronic tags at a time.

Further, still include: and the monitor is used for monitoring the warehouse management system and is in signal connection with the talkback robot.

Further, the intercom robot includes: the voice input module is used for collecting artificial voice, the controller is used for submitting a request to the server according to the artificial voice from the voice input module, and the loudspeaker is used for playing an artificial voice response prompt message;

the loudspeaker and the voice input module are respectively electrically connected with the controller.

Further, the robot of talkbacking still includes: the talkback robot is also used for regularly controlling the alarm lamp to flicker to prompt inventory checking through the timing of the system clock;

the system clock and the alarm lamp are respectively electrically connected with the controller.

Further, the robot of talkbacking still includes: the display module is used for displaying the inventory data, and the talkback robot display module is a holographic projection display.

Further, still include: and the intercommunication robot and the server are connected to the internet through the networking terminal to realize the data connection between the intercommunication robot and the server.

Further, still include: and the mobile terminal is used for inquiring the inventory data from the server, and is in communication connection with the server.

Further, the mobile terminal is a tablet computer or a mobile phone.

The positive effects of the invention are as follows

An automatic inventory management system for a power metering device, comprising: talkback robot, machine trolley, transfer chain and server.

The warehousing management system comprises an intercom robot, a machine trolley, a conveying line and a server, wherein the server is used for storing warehousing ledgers of metering equipment, the intercom robot identifies artificial voice, and one application scenario is that a carrying instruction is initiated for the machine trolley, the metering equipment on a goods shelf is carried to the conveying line, and then the conveying line carries out warehouse-out on the metering equipment. The talkback robot realizes artificial voice recognition, does not need complicated filling and registering procedures in the warehouse-out process, and is simple and convenient to operate. The machine trolley is responsible for carrying the metering equipment to the conveying line from the goods shelves, and is different from the mode of manual handling in the past, saves physical power, and is efficient. When the warehouse entry and exit are completed, the warehouse entry and exit command is sent to the talkback robot through voice, the talkback robot sends the warehouse entry and exit completion command to the server, and the server updates the inventory data. The talkback robot of the warehouse management system can also receive voice input and send a request for inquiring the inventory data to the server, and the talkback robot displays the inventory data after receiving the inventory data of the server.

The warehousing management system is provided with the radio frequency identification door, the radio frequency identification door is used for reading an electronic tag of the warehousing metering equipment, the electronic tag records equipment information, the radio frequency identification door is arranged on the conveying line, when the metering equipment passes through the conveying line, the radio frequency identification door can read the electronic tag of the metering equipment passing through the conveying line, the electronic tag records the equipment information, the equipment information comprises information such as the serial number, the code, the model, the specification, the product name, the production date and the like of the metering equipment, the reading process of the electronic tag is quick, the aligning operation is not needed compared with a two-dimensional code or bar code identification mode, and the requirement on positioning precision is low. The talkback robot can analyze the equipment information from the electronic tag, when the equipment information is consistent with the account of ex-warehouse, the server is informed to modify the inventory data to complete the ex-warehouse operation, and the warehousing management system provided with the radio frequency identification door has high ex-warehouse efficiency, automatically checks out the inventory data and the real object, and ensures the consistency of the inventory data and the real object.

The radio frequency identification door of the warehouse management system can read a plurality of electronic tags at one time, for example, in a specific embodiment, 120 electronic tags can be read at one time, the more the electronic tag data read at one time, the higher the efficiency of passing through a conveying line, and the efficiency of warehouse entry and exit operation is improved.

The warehouse management system is provided with the monitor which monitors the operation of the warehouse management system, so that the warehouse management system can be operated without people and remotely.

The talkback robot with the storage management function is implemented as a control module with a controller as a core, and comprises a controller, wherein the controller receives input from a voice input module, an AI voice recognition module is arranged in a program in the controller and used for converting artificial voice into characters, and a loudspeaker is used for playing a prompt message when the talkback robot is operated.

The warehouse management system is also provided with a system clock, the system clock can send out a warehouse checking prompt through the alarm lamp at regular intervals, and when a worker gives an alarm through the alarm lamp, the worker can timely perform the warehouse checking work, so that the convenience of the warehouse management system is improved.

The display module of the talkback robot of the warehouse management system is used for displaying during interaction, the typical application is to display stock data, the display module of the talkback robot is a holographic projection display, and the stock data is displayed in the air by the holographic projection technology and is clear at a glance.

The warehouse management system is provided with the networking terminal, the talkback robots and the servers are connected to the Internet through the networking terminal, remote operation of the warehouse management system is achieved, one server can manage the talkback robots and the storehouses of a plurality of remote ends, comprehensive scheduling and comprehensive layout are achieved, and scheduling balance of industrial resources is facilitated.

The mobile terminal of the warehousing management system is a tablet personal computer or a mobile phone, and workers remotely access the server through the tablet personal computer or the mobile phone and inquire the inventory data through the server, so that the warehousing management system can almost realize inventory inquiry service anytime and anywhere, and brings convenience to the workers to carry out work.

Drawings

FIG. 1 is a functional block diagram of an automated warehouse management system for an electrical metering device in accordance with an embodiment of the present invention;

fig. 2 is a flowchart of the operation of the automatic warehouse management system of the power metering device according to the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1-2, an automatic warehouse management system for electric power metering equipment comprises: the system comprises an intercom robot, a machine trolley, a conveying line and a server;

the talkback robot is used for submitting an inventory display request to the server according to the received manual voice input and displaying inventory data, and is also used for converting the received manual voice input into a running command for controlling the machine trolley, and the machine trolley is used for carrying or sorting the metering equipment according to the running command;

the conveying line is used for storing metering equipment in a classified mode, and the talkback robot is further used for controlling the conveying line to enter and exit the warehouse metering equipment according to received manual voice input;

the server also receives a request from the intercom robot to send inventory data;

the machine trolley, the conveying line and the server are respectively in signal connection with the talkback robot.

More specifically, the warehousing management system of the invention is composed of four parts:

the talkback robot is used for receiving voice input from a warehouse manager and carrying out corresponding operation according to the voice input, such as sending a control command to the machine trolley.

And the machine trolley is used for receiving the command from the talkback robot and carrying or sorting the metering equipment to work according to the command.

The conveying line is used for conveying the metering equipment to make final warehouse entry and exit. The metering assets are various in types, the conveying line plays a role in storage in a partitioned mode, intelligent meters with different voltage grades and different current sizes and mutual inductors with different transformation ratios are stacked in a partitioned mode, and the metering assets are tidy and orderly. The intelligent meter needs to perform the overdue recheck every six months, and the delivery line can arrange the sequence of delivery according to the time of storage, so that the first-in first-out is realized, and the equipment storage condition is reasonably optimized.

The server receives the query from the intercom robot, returns inventory data, and the intercom robot is further used for displaying the data from the server.

A typical structure is that metering devices such as an intelligent meter and a mutual inductor are stored in a storehouse according to categories, the storehouse is usually provided with a storage rack, the storage rack is provided with a unique number, the metering devices such as the intelligent meter and the mutual inductor are stored in the storage rack, the metering devices are provided with codes, such as a bar code or a two-dimensional code, the number of the storage rack where the metering devices are located can be quickly found through the codes of the metering devices, or the codes of the metering devices can be quickly found through the numbers of the storage rack, and the one-to-one correspondence relationship between the metering devices and the storage rack numbers is realized.

The machine dolly is used for having enough to meet the need between storing frame and transfer chain, and the machine dolly is equipped with mechanical shovel, and measurement assets quantity is huge, and the machine dolly is responsible for the transport and the letter sorting of metering equipment, and traditional manpower dolly can bear the metering equipment of six turnover casees at most once to rely on the transport of manpower a case, the machine dolly then can rely on its mechanical shovel to carry the metering equipment of 12 turnover casees at most once, with half the effort doubly.

After the machine trolley receives a carrying and sorting command, the machine trolley can be rapidly moved to the position of the corresponding storage position of the storage rack, the corresponding metering equipment is shoveled down by the mechanical shovel, and then the machine trolley can be moved to the position corresponding to the conveying line to place the metering equipment on the conveying line.

The machine trolley carrying and sorting commands comprise the number and the quantity of carrying goods shelves and the walking route of the machine trolley, the numbers are planned in the talkback robot, the talkback robot performs optimal planning on the walking route of the machine trolley, the optimal planning route can enable the walking route of the machine trolley to be shorter, the running efficiency is higher, and conflicts can be avoided in the running process of a plurality of machine trolleys.

After the metering equipment is carried by the machine trolley, the metering equipment is placed on the conveying line, then a carrying finishing command is sent to the talkback robot, the talkback robot sends a conveying line starting command to the conveying line, the conveying line is started, and the metering equipment is conveyed to a storehouse warehouse-out position.

After the metering equipment finishes the delivery, the delivery procedure is handled at the server end by the metering equipment of the delivery through the voice recognition system, in one implementation mode, after the delivery personnel check the metering equipment of the delivery, the manual voice is sent to the talkback robot, the delivery metering equipment is informed to be consistent with the order of delivery, the talkback robot sends the delivery order to the server end after receiving the voice, and the server changes the account book so that the account book is consistent.

The intercom robot is provided with a display end, and inventory data can be displayed through the display end.

The working personnel send out the pronunciation command that shows stock data to the intercom robot, and the intercom robot can send the request that shows the stock to the server, and the server is after receiving the request, sends the stock data of request to the intercom robot, and the intercom robot can show stock data.

The warehousing management system comprises an intercom robot, a machine trolley, a conveying line and a server, wherein the server is used for storing warehousing ledgers of metering equipment, the intercom robot identifies artificial voice, and one application scenario is that a carrying instruction is initiated for the machine trolley, the metering equipment on a goods shelf is carried to the conveying line, and then the conveying line carries out warehouse-out on the metering equipment. The talkback robot realizes artificial voice recognition, does not need complicated filling and registering procedures in the warehouse-out process, and is simple and convenient to operate. The machine trolley is responsible for carrying the metering equipment to the conveying line from the goods shelves, and is different from the mode of manual handling in the past, saves physical power, and is efficient. When the warehouse entry and exit are completed, the warehouse entry and exit command is sent to the talkback robot through voice, the talkback robot sends the warehouse entry and exit completion command to the server, and the server updates the inventory data. The talkback robot of the warehouse management system can also receive voice input and send a request for inquiring the inventory data to the server, and the talkback robot displays the inventory data after receiving the inventory data of the server.

Further, still include: the system comprises a radio frequency identification door, wherein the radio frequency identification door is used for reading an electronic tag of the metering equipment in and out of a warehouse, the electronic tag records equipment information, the talkback robot receives the electronic tag from the radio frequency identification door, the talkback robot is also used for sending the metering equipment in and out of the warehouse data to the server, and the radio frequency identification door is in signal connection with the talkback robot.

More specifically, the radio frequency identification door is arranged on the conveying line, when the metering equipment passes through the conveying line, the radio frequency identification door can read an electronic tag of the metering equipment passing through the conveying line, the electronic tag records equipment information, the equipment information comprises information such as the serial number, the code, the model, the specification, the product name and the production date of the metering equipment, the electronic tag reading process is quick, compared with a two-dimensional code or bar code identification mode, the alignment operation is not needed, and the requirement on positioning accuracy is low. The device information of the electronic tag identified by the radio frequency identification door can be transmitted to the talkback robot, the talkback robot firstly compares the device information after receiving the device information of the electronic tag, compares whether the device information is consistent with an account required to be taken out of a warehouse or not, when the device information is consistent with the account required to be taken out of the warehouse, the conveyor line is continuously controlled to convey the device information, the last work of taking out of the warehouse is completed, and when the comparison result is that the device information is inconsistent with the account required to be taken out of the warehouse, the talkback robot can send an alarm to remind a worker to check.

When the received equipment information is consistent with the account of ex-warehouse, the talkback robot also sends out-warehouse requests to the server, and the server correspondingly modifies the inventory data.

The rfid gate departs from the old paper barcode tracking method and instead uses digital tag tracking. Data is transmitted between the digital label and the automated scanning system using radio waves, and device information is recorded. The radio frequency identification does not need to be accurately aligned with the bar code, can simply point to the approximate position of the bar code, and is more convenient. The radio frequency identification technology can read the information of a plurality of devices through the turnover box at one time, and the working speed is improved.

The warehousing management system is provided with the radio frequency identification door, the radio frequency identification door is used for reading an electronic tag of the warehousing metering equipment, the electronic tag records equipment information, the radio frequency identification door is arranged on the conveying line, when the metering equipment passes through the conveying line, the radio frequency identification door can read the electronic tag of the metering equipment passing through the conveying line, the electronic tag records the equipment information, the equipment information comprises information such as the serial number, the code, the model, the specification, the product name, the production date and the like of the metering equipment, the reading process of the electronic tag is quick, the aligning operation is not needed compared with a two-dimensional code or bar code identification mode, and the requirement on positioning precision is low. The talkback robot can analyze the equipment information from the electronic tag, when the equipment information is consistent with the account of ex-warehouse, the server is informed to modify the inventory data to complete the ex-warehouse operation, and the warehousing management system provided with the radio frequency identification door has high ex-warehouse efficiency, automatically checks out the inventory data and the real object, and ensures the consistency of the inventory data and the real object.

Further, the radio frequency identification door reads at least two electronic tags at a time.

More specifically, the rfid door of the warehousing management system of the present invention can read a plurality of electronic tags at one time, for example, in a specific embodiment, 120 electronic tags can be read at one time, and the more the data of the electronic tags read at one time, the higher the efficiency of passing through the conveyor line, thereby improving the efficiency of warehousing operation.

Further, still include: and the monitor is used for monitoring the warehouse management system and is in signal connection with the talkback robot.

More specifically, the monitor is a video monitoring system, and the internal operation condition of the storehouse can be remotely monitored through the video monitoring system.

The monitor is in signal connection with the talkback robot, the captured video images are transmitted to the talkback robot, and the video images from the monitor can be remotely viewed at the server side.

The warehouse management system is provided with the monitor which monitors the operation of the warehouse management system, so that the warehouse management system can be operated without people and remotely.

Further, the intercom robot includes: the voice input module is used for collecting artificial voice, the controller is used for submitting a request to the server according to the artificial voice from the voice input module, and the loudspeaker is used for playing an artificial voice response prompt message;

the loudspeaker and the voice input module are respectively electrically connected with the controller.

More specifically, the talkback robot of the warehouse management system is implemented as a control module taking a controller as a core, and comprises a controller for receiving input from a voice input module, wherein an AI voice recognition module is arranged in a program in the controller and used for converting artificial voice into characters, and a loudspeaker is used for playing a prompt message when the talkback robot is operated.

Further, the robot of talkbacking still includes: the talkback robot is also used for regularly controlling the alarm lamp to flicker to prompt inventory checking through the timing of the system clock;

the system clock and the alarm lamp are respectively electrically connected with the controller.

More specifically, the warehouse management system is further provided with a system clock, the system clock can send out a warehouse checking prompt through the alarm lamp at regular intervals, and when a worker gives an alarm through the alarm lamp, the worker can timely perform the warehouse checking work, so that the convenience of the warehouse management system is improved.

Further, the robot of talkbacking still includes: the display module is used for displaying the inventory data, and the talkback robot display module is a holographic projection display.

More specifically, the display module of the talkback robot of the warehouse management system is used for displaying during interaction, the typical application is to display inventory data, the display module of the talkback robot is a holographic projection display, and the holographic projection technology displays the inventory data in the air, so that the inventory data is clear at a glance.

Further, still include: and the intercommunication robot and the server are connected to the internet through the networking terminal to realize the data connection between the intercommunication robot and the server.

More specifically, the networking terminal has multiple modes in implementation, one common mode is a network card, the talkback robot and the server are connected to the internet through the network card to realize remote access of the talkback robot and the server, and one server can manage the talkback robots of multiple remote ends, so that the overall layout is facilitated, and resources are comprehensively scheduled.

The warehouse management system is provided with the networking terminal, the talkback robots and the servers are connected to the Internet through the networking terminal, remote operation of the warehouse management system is achieved, one server can manage the talkback robots and the storehouses of a plurality of remote ends, comprehensive scheduling and comprehensive layout are achieved, and scheduling balance of industrial resources is facilitated.

Further, still include: and the mobile terminal is used for inquiring the inventory data from the server, and is in communication connection with the server.

Further, the mobile terminal is a tablet computer or a mobile phone.

More specifically, the mobile terminal of the warehousing management system is a tablet personal computer or a mobile phone, and the staff remotely accesses the server through the tablet personal computer or the mobile phone and inquires inventory data through the server, so that the inventory inquiry service can be almost realized at any time and any place, and convenience is brought to the staff for carrying out work.

The above embodiments are merely preferred examples of the present invention and are not exhaustive of the possible implementations of the present invention. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the present invention.