CN116938641B - Novel low-power consumption unmanned intelligent gateway and method for electric power material warehouse - Google Patents
Novel low-power consumption unmanned intelligent gateway and method for electric power material warehouse Download PDFInfo
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Abstract
The invention provides a novel low-power consumption unattended intelligent gateway and a method for an electric power material warehouse, wherein the method comprises the following steps: at least one closed goods shelf of the electric power goods warehouse, which is used for storing electric power goods; the terminal gateways are arranged at the closed type goods shelves of the at least one electric power material warehouse and are used for sensing the access control action of the closed type goods shelves of the at least one electric power material warehouse, waking up and monitoring material category identification and material taking and placing positions, categories and quantity, generating corresponding taking and placing event messages, and encrypting and transmitting the taking and placing event messages; the central gateway remotely receives the picking and placing event messages encrypted and transmitted by the plurality of terminal gateways, decrypts the event messages and sends the decrypted event messages to the server for backup.
Description
Technical Field
The invention relates to the technical field of industrial wireless warehousing, in particular to a novel low-power consumption unattended intelligent gateway and method for an electric power material warehouse.
Background
Under the large background of rapid promotion of novel power system construction, new requirements are put forward on material management of power grid enterprises. The warehouse management level directly determines the management efficiency of the power enterprises, and the traditional material management work relies on manual work to carry out advance/discharge registration and check and inventory afterwards on the materials on each goods shelf in the power material warehouse, so that the problems that various materials are difficult to find, account objects are inconsistent, access cannot be traced and the like are the conventional management pain points. Even if the standard material catalogue, responsibility to people, multi-stage auditing and other measures are adopted successively, the phenomenon of missed registration, wrong registration or wrong taking and placing still depends on the self-discipline of personnel, and the confusion of material management is caused.
At present, a scheme for carrying out material management by adopting Internet of things equipment is adopted. Because the computing power of the traditional gateway is difficult to effectively support the operation of the edge calculation of the Internet of things, the gateway only has a signal receiving and transmitting function, and the scheme related to the algorithm is required to transmit data to a server, and the data is returned after being processed on the server. When a large number of Internet of things devices are accessed, the bandwidth of the server and the operation capability of the CPU are required to be high. The traditional gateway interface is single in type, mostly has only protocol conversion and transmission functions and only data packing and forwarding functions, is difficult to be effectively applied to various materials to frequently enter and exit a registration scene, lacks on-site decision making capability, is low in intelligent degree, and influences timeliness and accuracy of material management.
In summary, it is necessary to develop an intelligent gateway device for an electric power material warehouse, to perform the function of a material pipe on site, to provide edge computing power support, to reduce the bandwidth requirement and computing power resource consumption of a server, to increase the response speed of the warehouse, and to improve the status quo that accounts are inconsistent.
Disclosure of Invention
In view of the above, the invention provides a novel low-power-consumption unattended intelligent gateway and a method for a power material warehouse, which can automatically identify and manage the power material without personnel on site.
The technical scheme of the invention is realized as follows:
in one aspect, the invention provides a novel low-power consumption unattended intelligent gateway of a power material warehouse, which comprises the following components:
at least one closed goods shelf of the electric power goods warehouse, which is used for storing electric power goods;
the terminal gateways are arranged at the closed type goods shelves of the at least one electric power material warehouse and are used for sensing the access control action of the closed type goods shelves of the at least one electric power material warehouse, waking up and monitoring material category identification and material taking and placing positions, categories and quantity, generating corresponding taking and placing event messages, and encrypting and transmitting the taking and placing event messages;
the central gateway remotely receives the picking and placing event messages encrypted and transmitted by the plurality of terminal gateways, decrypts the event messages and sends the decrypted event messages to the server for backup; the at least one closed type goods shelf of the electric power material warehouse comprises a hollow shelf body and a plurality of independent storage chambers, wherein the storage chambers are arranged in an array along the extending direction of the shelf body; each storage room is provided with a cabin door which can be opened independently; each storage room is used for storing electric power materials; the terminal gateways are correspondingly arranged on at least one closed goods shelf of the electric power material warehouse;
the plurality of terminal gateways comprise ARM chips, an information acquisition module, a networking communication module, an input/output module, a storage module, a hardware encryption module and a DC power module; the ARM chip is respectively in communication connection with the networking communication module, the storage module and the hardware encryption module and is electrically connected with the input/output module; the information acquisition module is in communication connection with the networking communication module and is also in electric connection with the input/output module; the DC power module is respectively and electrically connected with the ARM chip, the information acquisition module, the networking communication module, the input/output module, the storage module and the hardware encryption module; the information acquisition module is correspondingly arranged in the frame body of the closed type goods shelf of at least one electric power material warehouse and the storage rooms; the networking communication module is used for terminal gateway internal communication, communication among different terminal gateways or communication between the terminal gateway and the central gateway; the input/output module is used for transmitting the switching value signal output by the information acquisition module to the ARM chip or further outputting the switching value signal output by the ARM chip to at least one closed type goods shelf of the electric power material warehouse; the hardware encryption module is used for encrypting the picking and placing event message when the terminal gateway sends the picking and placing event message to the central gateway; the DC power supply module is used for providing direct current power supplies with different grades;
The information acquisition module comprises an RFID read-write unit, a weighing unit, a temperature and humidity detection unit and a door magnetic unit; the RFID reading and writing units are arranged at the edges of the storerooms and are used for reading and writing RFID tags on electric materials put into or taken out of the storerooms to generate RFID tag reading and writing data; the weighing unit is used for outputting weight information of the current electric power materials containing the estimated change of the quantity of the electric power materials after being put into or taken out of the storage room; the temperature and humidity detection unit monitors temperature and humidity signals in the storage chambers in real time; the door magnetic unit detects whether each cabin door is opened or closed and outputs a door magnetic switching value signal; the RFID tag read-write data, the weight information of the current electric power materials and the temperature and humidity signals are sent to a networking communication module, and the networking communication module further forwards the data to an ARM chip; the gate magnetic switching value signal is sent to the input/output module, and the input/output module further sends the gate magnetic signal to the ARM chip; and the ARM chip generates a picking and placing event message according to the read-write data of the RFID tag, the weight information of the current electric power materials, the temperature and humidity signal and the door magnetic switch value signal, and locally stores or encrypts and transmits the picking and placing event message.
On the basis of the technical scheme, preferably, the information acquisition module further comprises an identity recognition unit, wherein the identity recognition unit is arranged on the cabinet body and is in communication connection with the networking communication module and used for recognizing the identity of the current power material accessing personnel; after the identity recognition unit confirms that the identity of the operator is legal, the RFID read-write unit and the weighing unit of each storeroom of the closed type goods shelf of at least one electric power material warehouse are enabled and awakened, and interaction between the closed type goods shelf of the at least one electric power material warehouse and the operator is achieved.
On the basis of the technical scheme, preferably, the ARM chip generates a picking and placing event message according to the read-write data of the RFID tag, the weight information of the current electric power materials, the temperature and humidity signal and the door magnetic signal, and locally stores or encrypts and sends the picking and placing event message, wherein the picking and placing event message is temporarily stored in a storage module of the terminal gateway after the picking and placing event message is generated according to the starting time of the picking and placing event, the information of an operator, the type of the picking and placing force materials, the difference between the estimated quantity of the picking and placing force materials and the actual picking and placing electric power materials and the ending time of the picking and placing time; the hardware encryption module reads the temporary storage picking and placing event message, encrypts the picking and placing event message by adopting an encryption algorithm, and then sends the picking and placing event message to the central gateway by the networking communication module.
Preferably, the hardware encryption module encrypts the pick-and-place event message by adopting an encryption algorithm, and one of AES, 3DES, RSA, ECC, SHA1, SHA256, SM2, SM3, SM4 or SM9 encryption algorithms is adopted.
On the other hand, the invention also provides a novel low-power consumption unattended method of the electric power material warehouse, which comprises the following steps:
s1: the novel low-power consumption unattended intelligent gateway of the electric power material warehouse is configured; the method comprises the steps that an RFID read-write unit is arranged at one side edge of a hatch door opening of each storage room of at least one closed type goods shelf of the electric power material warehouse, a detection part of the RFID read-write unit faces to the center of the hatch door opening, a weighing unit is arranged at one end, close to the ground, of each storage room, and a temperature and humidity detection unit and a weighing unit are arranged in each storage room; the movable end and the fixed end of the cabin door of each storage room are oppositely provided with door magnetic units;
s2: the identity information of an operator authorized to operate at least one closed goods shelf of the electric power material warehouse is registered in advance; the identity information is stored in a plurality of terminal gateways; the door magnet unit, the temperature and humidity detection unit and the identity recognition unit of the information acquisition module are in a continuous running state and are used for monitoring the opening state of the cabin door of each storage room of the closed type goods shelf of at least one electric power material warehouse, the temperature and humidity inside the cabin door and the identity of an operator approaching the closed type goods shelf of the at least one electric power material warehouse;
S3: the identity recognition unit of the information acquisition module performs identity verification on operators approaching to at least one closed goods shelf of the electric power material warehouse; after passing the identity verification and generating identity verification information, an ARM chip of a terminal gateway at a closed goods shelf of at least one electric power material warehouse wakes up a networking communication module in a dormant state, an RFID read-write unit and a weighing unit of an information acquisition module respectively; after the operator selects taking operation or placing operation, an ARM chip of the terminal gateway starts one or more cabin doors through an input/output module, and acquires the states of the cabin doors through a door magnet unit to generate a door magnet switching value signal; the RFID read-write unit confirms the type information of the electric power materials in the storage room of the opened cabin door; the weighing unit acquires weight information of electric power materials in a storage room of the currently opened cabin door, and the identity verification information, the cabin door state information, the type information of the electric power materials and the weight information of the electric power materials are all sent to the networking communication module, and the networking communication module further sends the information to the ARM chip;
s4: the ARM chip generates a picking and placing event message according to a preset format according to the acquired identity verification information and the starting time, the temperature and humidity monitoring signal, the cabin door state information fed back by the door magnetic unit, the category information of the electric power supplies, the weight information of the electric power supplies and the estimated quantity of the picking and placing power supplies; confirming the content corresponding to the picking and placing event message by an operator on site, and storing the picking and placing event message in a storage module of a terminal gateway after the confirmation is finished; and then the ARM chip of the terminal gateway wakes up the hardware encryption module, the hardware encryption module reads the newly generated picking and placing event message in the storage module, the picking and placing event message is encrypted by adopting an encryption algorithm, and the encrypted picking and placing event message is transmitted to the central gateway in a wireless communication mode through the networking communication module.
Preferably, the generating the picking and placing event message according to the preset format simultaneously satisfies the following conditions:
A. taking the passing time of the identity verification of the current operator as the starting time of the current picking and placing event, taking the time of interaction and completion confirmation of the content corresponding to the picking and placing event message by the operator on site as the ending time of the current picking and placing event, wherein the time interval between the starting time of the default picking and placing event and the ending time of the picking and placing event is the preset first time threshold T 1 Based on the identity of the operator and the total weight of the electric power materials corresponding to the picking and placing event, a preset first time threshold T is calculated 1 Performing adjustment, increment or adjustment, subtraction; for different operators, a given preset firstA time threshold T 1 Are not identical; the number of electric power supplies placed in the storage room of one opening cabin door at a time is not less than one;
B. when the first time threshold is reached, the identity recognition unit of the information acquisition module can request the operator in the field to perform identity verification again, such as when the first time threshold T is reached 1 The identity verification is completed again before, and the opening state of the cabin door of the storage room of the closed type goods shelf of the at least one currently opened electric power material warehouse can be prolonged by a first time threshold T 1 Is automatically closed after the current picking and placing event is confirmed to be finished by the on-site operator or actively by the on-site operator, such as not in the first time threshold T 1 After the internal authentication is finished again, the cabin door of the storage room of the closed type goods shelf of the at least one electric power material warehouse which is opened at present can be automatically switched to a closed state after a period of time delay, the current picking and placing event is forcedly ended, the moment of forcedly ending the current picking and placing event is taken as the ending time of the current picking and placing event, and the extension of the opened state or the forcedly ending of the current picking and placing event are recorded in cabin door state information;
C. the RFID read-write unit confirms whether the type of the electric power materials sent into the storeroom by the current operator is consistent with the type of the electric power materials preset in the storeroom, and after confirming that the type information of the electric power materials is consistent, the RFID read-write unit rewrites the content of an access state field of the RFID tag preset on the electric power materials passing through the door of the current storeroom, registers the number of the rewritten RFID tags and obtains RFID tag read-write data;
D. the weighing unit updates the real-time weight of the electric power materials in the current storage room, estimates the variation of the electric power materials in the same category in the storage room, and outputs the weight information of the electric power materials comprising the real-time weight of the current electric power materials and the estimated variation of the electric power materials;
E. Comparing the variation of the electric materials in the same category obtained by the weighing unit with the variation of the RFID tags confirmed by the RFID reading and writing unit, correcting the variation of the electric materials confirmed by the RFID reading and writing unit by taking the variation of the electric materials obtained by the weighing unit 222 as a reference, if the variation of the quantity estimated by the RFID reading and writing unit and the weighing unit is different, indicating that a phenomenon of registration omission exists, prompting a current operator to restore and return the electric materials in the same storage room recently, clearing the contents of access status fields of the RFID tags of the electric materials in the same storage room recently fetched and returned by the RFID reading and writing unit, and after the electric materials are fetched and returned again, fetching and returning the access status fields of the RFID tags one by one, so that the quantity of the rewritten RFID tags registered by the RFID reading and writing unit is consistent with the variation of the electric materials corresponding to the weighing unit;
and forming an integral body by the identity verification information meeting the conditions, the starting time, the temperature and humidity monitoring signal, the cabin door state information fed back by the door magnetic unit, the type information of the electric power materials, the weight information of the electric power materials and the estimated quantity fields of the power taking and discharging materials, and adding a message head and a message ending mark to obtain a power taking and discharging event message.
Preferably, the upper limit of the storage quantity of each storage room of the closed type goods shelf of at least one electric material warehouse for different types of electric materials is not identical, and when the quantity of the electric materials in the same type in the current storage room estimated by the weighing unit reaches the upper limit of the storage quantity, whether the first time threshold T is reached or not 1 The cabin door of the current storage room is immediately closed, the operation of storing the electric power supplies of the same type in the storage room is stopped, only the operation of extracting the electric power supplies is supported, the identity recognition unit prompts that the electric power supplies are filled in the storage room, and an operator activates another type of storage room of the closed type shelf of the current electric power supply warehouse or the adjacent type of storage room on the closed type shelf of the other electric power supply warehouse.
Preferably, the weight information of the electric power supplies including the real-time weight and the estimated amount of change of the current electric power supplies is output by the weighing unit according to the formula: Δx= |x' -x|oc V CC (R '-R) wherein DeltaX is the real-time weight change amount obtained by the weighing unit, X is the real-time weight before taking and placing, X' is the real-time weight after taking and placing,V CC and R' is the resistance of the weighing sensor after taking and placing, and R is the resistance of the weighing sensor before taking and placing, so that the resistance change of the weighing sensor before taking and placing is inversely proportional to the real-time weight change acquired by the weighing unit.
Compared with the prior art, the novel low-power consumption unattended intelligent gateway and method for the electric power material warehouse have the following beneficial effects:
(1) According to the scheme, the edge computing force of the terminal gateway is remarkably improved, the electric power material in-and-out registration in the closed type goods shelf of the electric power material warehouse can be managed and controlled on site, and the computing force requirement of the central gateway and the network bandwidth requirement are reduced;
(2) When the wireless communication is carried out with the central gateway, a hardware-level encryption chip is adopted, so that the data transmission is safer;
(3) The DC power supply selects a proper circuit, so that the power can be supplied to each module stably without interference, and the working and mutual communication processes of different modules are more stable.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a novel low-power consumption unattended intelligent gateway and method for electric power material warehouse in the invention;
FIG. 2 is a front view of a closed type shelf of the electric power material warehouse of the novel electric power material warehouse low-power consumption unattended intelligent gateway and method of the invention;
FIG. 3 is a front view, partly in cross section, of a closed type shelf of the electric power material warehouse of the novel electric power material warehouse low-power consumption unattended intelligent gateway and method of the invention;
FIG. 4 is an enlarged partial cross-sectional view of a storage compartment of a closed type goods shelf of the novel low-power consumption unattended intelligent gateway and method for the electric power material warehouse;
FIG. 5 is a block diagram of a novel low power consumption unattended intelligent gateway and method terminal gateway for a power material warehouse;
FIG. 6 is a wiring diagram of an RFID read-write unit of the novel low power consumption unattended intelligent gateway and method of the electric power material warehouse of the invention;
FIG. 7 is a wiring diagram of a weighing unit of the novel low power consumption unattended intelligent gateway and method of the invention for a power material warehouse;
FIG. 8 is a wiring diagram of a door magnet unit of the novel low power consumption unattended intelligent gateway and method of the invention for a power material warehouse;
FIG. 9 is a schematic diagram of a portion of a networking communication module of the novel low power consumption unattended intelligent gateway and method for a power material warehouse of the present invention;
FIG. 10 is a schematic diagram of the wiring of a 4G communication unit of a networking communication module of the novel low-power-consumption unattended intelligent gateway and method for the electric power material warehouse;
FIG. 11 is a schematic diagram of the connection between the 4G communication unit and the SIM card of the novel low-power-consumption unattended intelligent gateway and method for the electric power material warehouse;
FIG. 12 is a schematic diagram of the hardware encryption module of the low power consumption unattended intelligent gateway and method for the novel electric power material warehouse;
fig. 13 is a wiring diagram of a DC power module of the novel low power consumption unattended intelligent gateway and method for electric power material warehouse of the invention.
Detailed Description
The following description of the embodiments of the present invention will clearly and fully describe the technical aspects of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
As shown in fig. 1-5, in one aspect, the present invention provides a novel low-power consumption unattended intelligent gateway for a power material warehouse, including:
The at least one electric power material warehouse closed type goods shelf 1 is used for storing electric power materials; as shown in fig. 2-4, the illustrations disclose a schematic structural diagram of a specific closed-type rack of an electric power material warehouse, each rack having a plurality of independent storage spaces for placing electric power materials of the same category or different categories.
The terminal gateways 2 are arranged at the closed type goods shelves 1 of the at least one electric power material warehouse and are used for sensing the door control action of the closed type goods shelves 1 of the at least one electric power material warehouse, waking up and monitoring the material category identification and the material taking and placing positions, the category and the quantity, generating corresponding taking and placing event messages, and encrypting and transmitting the taking and placing event messages; the terminal gateway 2 is improved in pertinence, improves the on-site data acquisition and processing capability, can identify and confirm the actions of operators and automatically generate the picking and placing event message, and avoids the inconvenience of manual registration.
The central gateway 3 receives the encrypted and transmitted access event messages from the plurality of terminal gateways 2 remotely, decrypts the encrypted and transmitted access event messages and sends the decrypted access event messages to the server for backup. The central gateway 3 has only data storage and backup functions and does not serve as a main computing unit, so that the demands on hardware configuration, network bandwidth of the central gateway 3 are significantly reduced.
As shown in fig. 2 to 4, in order to better realize independent storage of different materials, at least one closed type goods shelf 1 of an electric material warehouse comprises a hollow shelf body 11 and a plurality of independent storage chambers 12, wherein the storage chambers 12 are arranged in an array along the extending direction of the shelf body 11; each storage chamber 12 is provided with a cabin door which can be opened independently; each storage room 12 is used for storing electric power supplies; the terminal gateways 2 are correspondingly arranged on at least one closed goods shelf 1 of the electric power material warehouse. As can be seen from the figure, the different storerooms 12 are not communicated with each other, and different materials are not in direct contact with each other, so that the classified storage of different electric power materials is facilitated.
As shown in fig. 2 in combination with fig. 5, the plurality of terminal gateways 2 each include an ARM chip 21, an information acquisition module 22, a networking communication module 23, an input/output module 24, a storage module 25, a hardware encryption module 26, and a DC power module 27; the ARM chip 21 is respectively in communication connection with the networking communication module 23, the storage module 25 and the hardware encryption module 26 and is electrically connected with the input/output module 24; the information acquisition module 22 is in communication connection with the networking communication module 23 and is also electrically connected with the input/output module 24; the DC power module 27 is respectively and electrically connected with the ARM chip 21, the information acquisition module 22, the networking communication module 23, the input/output module 24, the storage module 25 and the hardware encryption module 26; the information acquisition module 22 is correspondingly arranged inside the frame body 11 and the storage rooms 12 of the at least one closed type goods shelf 1 of the electric power material warehouse; the networking communication module 23 is used for internal communication of the terminal gateway 2, communication between different terminal gateways 2 or communication between the terminal gateway 2 and the central gateway 3; the input/output module 24 is configured to transmit the switching value signal output by the information acquisition module 22 to the ARM chip 21, or further output the switching value signal output by the ARM chip 21 to at least one closed type goods shelf 1 of the electric power material warehouse; the hardware encryption module 26 is used for encrypting the picking and placing event message when the terminal gateway 2 sends the picking and placing event message to the central gateway 3; the DC power module 27 is used to provide different levels of direct current power. Referring to fig. 13, the ARM chip 21 of the present embodiment may be a separate chip, or may be a development board integrated with an ARM chip, where the ARM chip 21 has several GPIO ports and serial communication ports, and the serial ports may be UART, I2C, or other types. ARM chip 21 is connected with networking communication module 23, storage module 25, hardware encryption module 26 and the functional unit communication in the partial information acquisition module 22 through the serial port, and is connected with the partial functional unit and the DC power module electric connection of information acquisition module through the GPIO port. Such as an identification unit 225, an RFID read-write unit 221, a weighing unit 222 or a temperature and humidity detecting unit 223 of the information collecting module 22 having a communication function. The driving signal or the feedback signal in the form of the switching value of the gate magnetic unit 224 is correspondingly and electrically connected with the GPIO port of the ARM chip 21 through the input/output module 24.
As shown in fig. 5 in combination with fig. 6, fig. 7, fig. 8, and fig. 9, the information acquisition module 22 includes an RFID read-write unit 221, a weighing unit 222, a temperature and humidity detection unit 223, and a door magnetic unit 224; the RFID read/write unit 221 is disposed at an edge of each storage room 12, and is configured to perform RFID tag read/write on the electric materials placed in or taken out of the storage room 12, so as to generate RFID tag read/write data; the weighing unit 222 is used for outputting weight information of the current electric power supplies including the estimated change of the number of the electric power supplies after being put into or taken out of the storage room 12; the temperature and humidity detection unit 223 monitors temperature and humidity signals inside the storage chambers 12 in real time; the door magnet unit 224 detects whether each door is opened or closed, and outputs a door magnet switching value signal; the RFID tag read-write data, the weight information of the current electric power materials and the temperature and humidity signals are sent to the networking communication module 23, and the networking communication module 23 further forwards the data to the ARM chip 21; the gate magnetic switching value signal is sent to the input/output module 24, and the input/output module 24 further sends the gate magnetic signal to the ARM chip 21; ARM chip 21 generates the event message of getting put according to RFID label read-write data, current electric power material's weight information, humiture signal and door magnetism switching value signal, carries out local storage or encryption transmission to getting put the event message.
As shown in fig. 6 in combination with fig. 9, the schematic diagram of the connection of the RFID read-write unit 221 is shown, the main body of the RFID read-write unit includes an RFID card reader, the output end of the RFID card reader is connected with the input end of the SSP3485 chip U4 through a connection terminal, the serial port of the SSP3485 chip U4 is communicatively connected with the UART serial port of the ARM chip 21, and the enabling end of the SSP3485 chip U4 is electrically connected with the GPIO1 port of the ARM chip 21.
As shown in fig. 7 in conjunction with fig. 9, a schematic diagram of a connection of the weighing unit 222 is illustrated, and the output end of the weighing sensor may also be connected to the input end of the SSP3485 chip U4 through a connection terminal, i.e. a UART serial communication port of the ARM chip 21 is shared. The RFID read-write unit 221, the weighing unit 222 and the identity recognition unit 225 can all adopt an RS485 communication module to communicate with the ARM chip 21, and since the ARM chip 21 belongs to the TTL level and is different from the RS485 level, the level conversion is required by the SSP3485 chip U4. The weighing unit 222 may adopt a pressure-sensitive analog measurement unit, that is, the DC power module 27 provides an operating voltage, the resistance of the weighing unit 222 is changed according to the current weight born by the weighing unit 222, and the relation between the current real-time weight and the corresponding amount of electric power supplies can be obtained through the AD conversion carried by the ARM chip 21 due to the change of the resistance.
As shown in fig. 8, the gate magnetic switching value signal output by the gate magnetic unit 224 and the pin 1 of the optocoupler U5 are connected with the pin 4 of the optocoupler U5, and are electrically connected with the GPIO1 port of the ARM chip 21 and the pin 2 of the buzzer BEEP, and the pin 1 of the buzzer BEEP is electrically connected with the vcc_3.3v power supply. When the cabin door of the storage room 12 is opened, the door magnetic switch value signal is at a high level, the optocoupler U5 is conducted, and the buzzer works; the level at GPIO2 is pulled low and ARM chip 21 monitors the level of this port to confirm the open state of the corresponding door.
As shown in fig. 2 in combination with fig. 5, the identity recognition unit 225 is disposed on the cabinet body, and the identity recognition unit 225 is communicatively connected to the networking communication module 23, and is used for recognizing the identity of the person accessing the electric power material currently; the identity recognition unit 225 enables and wakes up the RFID read-write unit 221 and the weighing unit 222 of each storage room 12 of the at least one electric power material warehouse closed type shelf 1 after confirming that the identity of the operator is legal, so as to realize the interaction between the at least one electric power material warehouse closed type shelf 1 and the operator. The identity recognition unit 225 can adopt a keyboard interaction terminal with fingerprint and finger vein recognition, so that not only can the identity of an operator be recognized, but also a key input confirmation function can be performed, and the interaction process between the operator and the terminal gateway 2 can be realized.
As shown in fig. 5 in combination with fig. 10 and 11, the diagram illustrates a wiring diagram of a 4G communication unit, where the 4G communication unit U7 uses an EC-20 product with a mini-PCIE interface, which is a 4G wireless communication module with one end supporting a SIM card, and because the level is different from that of the ARM chip 21, a level conversion chip U6 is used to perform level conversion between vcc_1.8v and vcc_3.3v, so that the 4g_rxd and 4g_txd ports of the 4G communication unit U7 can normally communicate with UART2_tx and UART2_rx ports of the ARM chip 21. Pin 8, pin 10, pin 12 and pin 14 of the 4G communication unit U7 are electrically connected to pin 1, pin 6, pin 3 and pin 2 of the SIM card in one-to-one correspondence, respectively: in order to ensure the stability of the model, a voltage stabilizing tube chip U8 is adopted, each pin of the voltage stabilizing tube chip U8 is correspondingly provided with a reverse voltage stabilizing diode, the cathode of the voltage stabilizing diode is respectively and electrically connected with the pin 1, the pin 6, the pin 3 and the pin 2 of the SIM card, and the anodes of the voltage stabilizing diodes are grounded, so that the signal fluctuation of each pin of the SIM card can be restrained. Of course, the present solution is exemplified by a 4G communication unit, and actually, an ethernet unit, a USB interface unit, a LoRa communication unit, etc. may be used to perform mailbox or wireless communication, and the data communication process with the central gateway 3 may be implemented. The terminal gateway 2 can be embedded with a Linux system to provide a plurality of internet of things protocol supports such as Modbus, MQTT, HTTP and the like which can be configured.
The ARM chip 21 generates a picking and placing event message by acquiring the read-write data of the RFID tag, the weight information of the current electric power materials, the temperature and humidity signals and the door magnetic signals, and performs local storage or encryption transmission on the picking and placing event message, wherein the picking and placing event message is temporarily stored in the storage module 25 of the terminal gateway 2 after the picking and placing event message is generated according to the starting time of the picking and placing event, the information of an operator, the type of the picking and placing force materials, the estimated difference between the number of the picking and placing force materials and the actual electric power materials and the ending time of the picking and placing time; the buffered pick-and-place event message is read by the hardware encryption module 26, encrypted by an encryption algorithm, and then sent to the central gateway 3 by the networking communication module 23.
The encryption algorithm is a decoding module which adopts one of AES, 3DES, RSA, ECC, SHA, SHA256, SM2, SM3, SM4 or SM9 encryption algorithm to encrypt the picking and placing event message, improves the safety and reliability of wireless communication and can be correspondingly arranged at the central gateway 3. As shown in fig. 12, the diagram shows a wiring diagram of a hardware encryption module, wherein the main body of the hardware encryption module is an encryption chip, and the hardware encryption module communicates with an ARM chip 21 through a UART and/or an I2C serial port. The encryption chip of the scheme can be realized by adopting a TF32A029 or CS18S-E4NVA chip.
As shown in fig. 13, a wiring diagram of the DC power module 27 is shown. In the figure, a voltage stabilizing and filtering circuit structure of two stages of DC-DC voltage reducing chips U1 and U2 is adopted, and the voltage reduced by each stage of DC-DC voltage is related to the ratio of the voltage dividing resistance of the output end, namely the resistors R3 and R4 and the resistors R7 and R8. After the first stage of voltage reduction, the input 6-24VDC direct current is reduced to VCC_5V output, the VCC_5V can be further reduced by a synchronous voltage reduction chip such as AMS1117-3.3 and then is used by an ARM chip 21, in order to save energy cost, only when the ARM chip 21 is powered on, a GPIO0 pin of the ARM chip 21 has an enabling signal output, at the moment, the DC-DC voltage reduction chip U2 is enabled, the VCC_5V is further reduced to VCC_3.3V output, in order to meet the use requirement of a 4G communication unit U7, a voltage reduction chip AMD/LD1117 chip U3 is further adopted, and a VCC_3.3V power supply is reduced to VCC_1.8V for normal use of the corresponding chip. Because a large number of chips are used in the scheme, if the power supply fluctuation can cause signal transmission to be interfered, the input ends and the output ends of the DC-DC voltage reduction chips U1 and U2 in fig. 13 all adopt multistage parallel filtering structures, and stable power supply without interference can be realized.
In addition, the invention also provides a novel low-power consumption unattended method of the electric power material warehouse, which comprises the following steps:
S1: configuring hardware equipment of the novel low-power consumption unattended intelligent gateway of the electric power material warehouse; the RFID read-write unit 221 is arranged at one side edge of a hatch opening of each storage room 12 of the closed type goods shelf 1 of at least one electric power material warehouse, a detection part of the RFID read-write unit 221 faces to the center of the hatch opening, a weighing unit 222 is arranged at one end, close to the ground, of each storage room 12, and a temperature and humidity detection unit 223 and a weighing unit 222 are arranged in each storage room 12; a door magnetic unit 224 is arranged opposite to the movable end and the fixed end of the cabin door of each storage room 12;
s2: the identity information of an operator authorized to operate at least one electric power material warehouse closed type goods shelf 1 is registered in advance; the identity information is stored in a plurality of terminal gateways 2; the door magnet unit 224, the temperature and humidity detection unit and the identity recognition unit 225 of the information acquisition module 22 are in a continuous running state and are used for monitoring the opening state of the cabin door of each storage room 12 of the closed type goods shelf 1 of at least one electric power material warehouse, the temperature and humidity inside the cabin door and the identity of an operator approaching the closed type goods shelf 1 of at least one electric power material warehouse; identity confirmation can be realized through a keyboard interaction terminal with fingerprint and finger vein recognition;
S3: the identity recognition unit 225 of the information acquisition module 22 performs identity verification on an operator approaching the closed type goods shelf 1 of at least one electric power material warehouse; after passing the identity verification and generating the identity verification information, the ARM chip 21 of the terminal gateway 2 at the closed goods shelf 1 of at least one electric power material warehouse wakes up the networking communication module 23 in the dormant state, the RFID read-write unit 221 and the weighing unit 222 of the information acquisition module 22 respectively; after the operator selects the taking operation or the placing operation, the ARM chip 21 of the terminal gateway 2 starts one or more cabin doors through the input/output module 24, and acquires the states of the cabin doors through the door magnet unit 224 to generate a door magnet switching value signal; the RFID read-write unit 221 confirms the type information of the electric power supplies in the storage room 12 of the opened hatch door; the weighing unit 222 obtains the weight information of the electric power supplies in the storeroom 12 of the currently opened cabin door, and the identity verification information, the cabin door state information, the category information of the electric power supplies and the weight information of the electric power supplies are all sent to the networking communication module 23, and the networking communication module 23 further sends to the ARM chip 21;
s4: ARM chip 21 generates a picking and placing event message according to a preset format according to the acquired identity verification information and the starting time, the temperature and humidity monitoring signal, the cabin door state information fed back by door magnetic unit 224, the category information of electric power supplies, the weight information of the electric power supplies and the estimated quantity of picking and placing power supplies; confirming the corresponding content of the picking and placing event message by an operator on site, and storing the picking and placing event message in a storage module 25 of the terminal gateway 2 after the confirmation is finished; then the ARM chip 21 of the terminal gateway 2 wakes up the hardware encryption module 26, the hardware encryption module 26 reads the newly generated picking and placing event message in the storage module 25, and encrypts the picking and placing event message by adopting an encryption algorithm, and the encrypted picking and placing event message is sent to the central gateway 3 in a wireless communication mode through the networking communication module 23.
In step S4, a fetch event message is generated according to a preset format, which needs to satisfy the following conditions simultaneously:
A. taking the passing time of the identity verification of the current operator as the starting time of the current picking and placing event, taking the time of interaction and completion confirmation of the content corresponding to the picking and placing event message by the operator on site as the ending time of the current picking and placing event, wherein the time interval between the starting time of the default picking and placing event and the ending time of the picking and placing event is the preset first time threshold T 1 Based on the identity of the operator and the total weight of the electric power materials corresponding to the picking and placing event, a preset first time threshold T is calculated 1 Performing adjustment, increment or adjustment, subtraction;
if the identity of the operator is confirmed, a preset first time threshold T is given for the operators of different age groups according to the age of the current operator 1 Are not identical; the number of electric power supplies placed in the storage room 12 of one opening door at a time is not less than one; first time threshold T 1 It can be considered that a reference value, for example, 600 seconds is set. For operators of different ages, the first time threshold T can be selected for operators of ages 25-35 1 600 seconds, e.g. between 35 and 45 years of age, a first time threshold T 1 Can increase 20% -50% on the reference value; for the total amount or total weight of the electric power supplies currently fetched and placed by the operator, the first time threshold T is given on the basis of the age 1 Further increasing or decreasing the total weight of all electric materials contained in the current picking and placing event to be not more than 100kg based on 100kg, the first time threshold T 1 For the reference value to be unchanged, the total weight of all electric power materials contained in the current picking and placing event is more than 100kg, a certain weight is added per step based on 100kg, such as mkg, a first time threshold T 1 Can correspondingly increase by 5% -10% on the reference value, and m is an integer multiple of 5. The first time threshold is given enough to allow the operator sufficient time to fully complete the picking and placing operation; even if the operator leaves temporarily or does not close the cabin door after the taking and placing operation is completed, the operator arrives atAutomatically closing the cabin door when the first time threshold is set; when the current operation is not finished or the cabin door is not closed, the identity verification process of other operators can be delayed, so that only one operator of the closed type goods shelf 1 of the current electric power material warehouse is ensured at any moment.
B. The identification unit 225 of the information acquisition module 22 may require re-authentication of the operator at the site when the first time threshold is about to be reached, e.g., when the first time threshold T is reached 1 Before the authentication is completed again, the opening state of the cabin door of the storage room 12 of the closed type goods shelf 1 of the at least one electric power material warehouse which is opened at present can be prolonged by a first time threshold value T 1 Or automatically shut down after the completion of the current pick-and-place event, e.g., not at the first time threshold T, by the operator on site actively confirming to the identification unit 225 1 And after the re-identity verification is finished before the inner part, the cabin door of the storage room 12 of the closed type goods shelf 1 of the at least one electric power material warehouse which is opened at present can be automatically switched to a closed state after a time delay, the current picking and placing event is forcedly ended, the moment of forcedly ending the current picking and placing event is taken as the ending time of the current picking and placing event, and the extension of the delayed opening state or the forcedly ending of the current picking and placing event is recorded in cabin door state information.
C. The RFID read/write unit 221 confirms whether the type of the electric power material supplied to the storage room 12 by the current operator is consistent with the type of the electric power material preset in the storage room 12, and after confirming that the type information of the electric power material is consistent, the RFID read/write unit 221 rewrites the contents of the access status field of the RFID tag preset on the electric power material passing through the door of the current storage room 12, registers the number of rewritten RFID tags, and obtains the RFID tag read/write data.
D. The weighing unit 222 updates the real-time weight of the current electric power supply in the storage room 12, estimates the variation of the same kind of electric power supply located in the storage room 12, and outputs the weight information of the electric power supply including the real-time weight of the current electric power supply and the estimated variation of the amount of electric power supply:
△X＝|X’-X|∝V CC /(R' -R) |, where deltaX is the real-time weight change obtained by the weighing unit 222, X is the real-time weight before taking and placing, X' is the real-time weight after taking and placing, V CC The working voltage provided by the DC power module 27 is R' the resistance of the weighing sensor after picking and placing, R is the resistance of the weighing sensor before picking and placing, and the working voltage provided by the DC power module 27 can be considered to be unchanged, so that the resistance change of the weighing sensor before picking and placing is inversely proportional to the real-time weight change acquired by the weighing unit 222. Let the weight of a single electric power material of a certain type be X 0 The average value of the weight of the single electric power material is calculated according to the weight information of the electric power material in the previous n times of successful picking and placing event messages, n is not less than 20, and the real-time weight change quantity DeltaX and X of the current picking and placing event are calculated 0 Ratio DeltaX/X of (A) 0 Rounding to obtain the estimated quantity change corresponding to the current real-time weight change of the power supplies. The temperature and humidity detecting unit 223 of the information collecting module 22 also monitors whether the temperature and humidity conditions in each storage room 12 are abnormal. Such temperature and humidity anomalies may cause temperature drift in the resistance of the load cell, and the real-time weight variation and the corresponding estimated number variation acquired by the weight balancing unit 222 may have adverse effects.
E. The difference between the change amount of the electric materials in the same category obtained by the weighing unit 222 and the number of times of rewriting the RFID tags confirmed by the RFID reading and writing unit 221 is compared, the change amount of the electric materials confirmed by the RFID reading and writing unit 221 is corrected based on the change amount of the electric materials obtained by the weighing unit 222, if the change amount of the electric materials estimated by the RFID reading and writing unit 221 and the change amount of the electric materials estimated by the weighing unit 222 are different, the phenomenon of registration omission is indicated, the current operator is prompted to restore and reset the electric materials in the same storeroom 12 last time, the RFID reading and writing unit 221 clears the content of the access state field of the RFID tag of the electric materials in the same storeroom 12 last time, and after the electric materials are restored, the access state field of each RFID tag is restored one by one, so that the number of the rewritten RFID tags registered by the RFID reading and writing unit 221 is consistent with the change amount of the electric materials corresponding to the weighing unit 222.
If the amount of change in the amount estimated by the RFID read/write unit 221 and the amount of change estimated by the weighing unit 222 is still different and the difference value is always 1 after the electric power supplies are restored to the home position for the missed registration, the amount of change estimated by the weighing unit 222 is made to coincide with the amount of the rewritten RFID tags recorded by the RFID read/write unit 221 by automatically adding 1 or subtracting 1 in an automatic correction manner. The above-described process is because the amount of change estimated by the weighing unit 222 has a rounding process, rounding off when there is a small deviation in weight, or there may be a temperature abnormality in the storage room 12, so that the amount of change estimated by the weighing unit 222 may be small or large, with a single amount of difference. By repeating one or more electric materials of the same type of the last picking and placing operation and realizing picking and placing one by one, the situation that errors in reading and writing the tag by the RFID read-write unit 221 may exist when sequentially picking and placing a plurality of electric materials is eliminated, and the quantity change estimated by the weighing unit 222 is corrected according to the number of times the tag is read and written by the RFID read-write unit 221.
The identity verification information meeting the above conditions, the starting time, the temperature and humidity monitoring signal, the cabin door state information fed back by the door magnetic unit 224, the category information of the electric power materials, the weight information of the electric power materials and the estimated quantity fields of the power materials to be fetched and discharged are added with separators between adjacent fields to form a whole, and further a message head and a message end mark are added to obtain the message of the fetching and discharging event.
There is a special case that if the storing operation is continuously performed, the limited space in the storage room 12 is filled up, and a targeted prevention is required. The upper limit of the storage quantity of each storage room 12 of the closed type goods shelf 1 of at least one electric material warehouse for different types of electric materials is not identical, and when the quantity of the electric materials of the same type in the current storage room 12 estimated by the weighing unit 222 reaches the upper limit of the storage quantity, whether or not the first time threshold T is reached 1 The door of the current storage chamber 12 is immediately closed and the door is stoppedThe same kind of electric power material storing operation in the storage room 12 only supports the operation of extracting electric power material, the identification unit 225 prompts that the electric power material is filled in the storage room 12, and the operator activates another type of storage room 12 of the closed type shelf of the current electric power material warehouse or another type of storage room 12 on the closed type shelf of the adjacent other electric power material warehouse. If the same operator continuously stores or retrieves the same type of electric power materials in the same storage room, and the number of the electric power materials in the storage room does not reach the upper limit of the storage number or is zero, even if the total time of the taking and placing events exceeds at least one first time threshold, the terminal gateway 2 can combine the same operator with the continuous same type of operation in the same storage room, so as to generate a taking and placing time message.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (8)
1. Novel unmanned on duty intelligent gateway of electric power goods and materials warehouse low-power consumption, its characterized in that includes:
at least one closed goods shelf (1) of the electric power supplies warehouse, is used for storing the electric power supplies;
the terminal gateways (2) are arranged at the closed type goods shelves (1) of the at least one electric power material warehouse and are used for sensing the door control action of the closed type goods shelves (1) of the at least one electric power material warehouse, waking up and monitoring material category identification and material picking and placing positions, categories and quantity, generating corresponding picking and placing event messages, and encrypting and transmitting the picking and placing event messages;
a central gateway (3) remotely receives the picking and placing event messages encrypted and transmitted by a plurality of terminal gateways (2), decrypts the event messages and sends the decrypted event messages to a server for backup; the at least one closed type goods shelf (1) of the electric power material warehouse comprises a hollow shelf body (11) and a plurality of independent storage chambers (12), wherein the storage chambers (12) are arranged in an array along the extending direction of the shelf body (11); each storage chamber (12) is provided with a cabin door which can be independently opened; each storage room (12) is used for storing electric power supplies; the terminal gateways (2) are correspondingly arranged on at least one closed goods shelf (1) of the electric power material warehouse;
The plurality of terminal gateways (2) comprise ARM chips (21), an information acquisition module (22), a networking communication module (23), an input/output module (24), a storage module (25), a hardware encryption module (26) and a DC power module (27); the ARM chip (21) is respectively in communication connection with the networking communication module (23), the storage module (25) and the hardware encryption module (26) and is electrically connected with the input/output module (24); the information acquisition module (22) is in communication connection with the networking communication module (23) and is also electrically connected with the input/output module (24); the DC power module (27) is respectively and electrically connected with the ARM chip (21), the information acquisition module (22), the networking communication module (23), the input/output module (24), the storage module (25) and the hardware encryption module (26); the information acquisition module (22) is correspondingly arranged in the frame body (11) and the storage rooms (12) of the at least one closed type goods shelf (1) of the electric power material warehouse; the networking communication module (23) is used for internal communication of the terminal gateway (2), communication among different terminal gateways (2) or communication between the terminal gateway (2) and the central gateway (3); the input/output module (24) is used for transmitting the switching value signal output by the information acquisition module (22) to the ARM chip (21), or further outputting the switching value signal output by the ARM chip (21) to at least one closed type goods shelf (1) of the electric power material warehouse; the hardware encryption module (26) is used for encrypting the picking and placing event message when the terminal gateway (2) sends the picking and placing event message to the central gateway (3); the DC power supply module (27) is used for providing direct current power supplies with different grades;
The information acquisition module (22) comprises an RFID read-write unit (221), a weighing unit (222), a temperature and humidity detection unit (223) and a door magnetic unit (224); the RFID reading and writing unit (221) is arranged at the edge of each storeroom (12) and is used for reading and writing RFID tags on electric materials put into or taken out of the storeroom (12) to generate RFID tag reading and writing data; the weighing unit (222) is used for outputting weight information of the current electric power materials containing the estimated change of the quantity of the electric power materials after being put into or taken out of the storage room (12); the temperature and humidity detection unit (223) monitors temperature and humidity signals in the storage chambers (12) in real time; the door magnetic unit (224) detects whether each cabin door is opened or closed and outputs a door magnetic switching value signal; the RFID tag reads and writes data, the weight information of the current electric power materials and the temperature and humidity signals are sent to a networking communication module (23), and the networking communication module (23) further forwards the data to an ARM chip (21); the gate magnetic switching value signal is sent to an input/output module (24), and the input/output module (24) further sends the gate magnetic signal to an ARM chip (21); the ARM chip (21) generates a picking and placing event message according to the read-write data of the RFID tag, the weight information of the current electric power materials, the temperature and humidity signal and the door magnetic switch value signal, and performs local storage or encryption transmission on the picking and placing event message.
2. The novel low-power consumption unattended intelligent gateway of the electric power material warehouse according to claim 1, wherein the information acquisition module (22) further comprises an identity recognition unit (225), the identity recognition unit (225) is arranged on the cabinet body, and the identity recognition unit (225) is in communication connection with the networking communication module (23) and is used for recognizing the identity of the current electric power material accessing personnel; after the identity recognition unit (225) confirms that the identity of the operator is legal, the RFID read-write unit (221) and the weighing unit (222) of each storeroom (12) of the at least one closed type goods shelf (1) of the electric power material warehouse are enabled and awakened, so that the interaction between the at least one closed type goods shelf (1) of the electric power material warehouse and the operator is realized.
3. The low-power consumption unattended intelligent gateway of the novel electric power material warehouse according to claim 1, wherein the ARM chip (21) generates a picking and placing event message according to RFID tag read-write data, weight information of current electric power materials, temperature and humidity signals and door magnetic signals, and performs local storage or encryption transmission on the picking and placing event message, wherein the picking and placing event message is temporarily stored in a storage module (25) of the terminal gateway (2) after the picking and placing event message is generated according to the starting time of the picking and placing event, operator information, the category of the picking and placing force materials, the estimated difference between the number of the picking and placing force materials and the actual picking and placing electric power materials and the ending time of the picking and placing time; the hardware encryption module (26) reads the temporarily stored picking and placing event message, encrypts the picking and placing event message by adopting an encryption algorithm, and then the networking communication module (23) sends the picking and placing event message to the central gateway (3).
4. The low-power consumption unattended intelligent gateway of a novel electric power material warehouse according to claim 3, wherein the hardware encryption module (26) encrypts the picking and placing event message by adopting an encryption algorithm, and the hardware encryption module is one of AES, 3DES, RSA, ECC, SHA1, SHA256, SM2, SM3, SM4 or SM9 encryption algorithms.
5. The novel low-power consumption unattended method for the electric power material warehouse is characterized by comprising the following steps of:
s1: configuring the novel low-power consumption unattended intelligent gateway of the electric power material warehouse according to any one of claims 1-3; the RFID read-write unit (221) is arranged at one side edge of a hatch opening of each storage room (12) of at least one closed type goods shelf (1) of the electric power material warehouse, a detection part of the RFID read-write unit (221) faces to the center of the hatch opening, a weighing unit (222) is arranged at one end, close to the ground, of each storage room (12), and a temperature and humidity detection unit (223) and the weighing unit (222) are arranged in each storage room (12); a door magnetic unit (224) is arranged opposite to the movable end and the fixed end of the cabin door of each storage room (12);
s2: the identity information of an operator authorized to operate at least one closed type goods shelf (1) of the electric power material warehouse is registered in advance; the identity information is stored in a plurality of terminal gateways (2); the door magnet unit (224), the temperature and humidity detection unit and the identity recognition unit (225) of the information acquisition module (22) are in a continuous running state and are used for monitoring the opening state of the cabin door of each storage room (12) of the closed type goods shelf (1) of at least one electric power material warehouse, the temperature and humidity inside the cabin door and the identity of an operator approaching the closed type goods shelf (1) of the at least one electric power material warehouse;
S3: an identity recognition unit (225) of the information acquisition module (22) performs identity verification on an operator approaching at least one closed goods shelf (1) of the electric power material warehouse; after passing the identity verification and generating identity verification information, an ARM chip (21) of a terminal gateway (2) at the closed goods shelf (1) of at least one electric power material warehouse wakes up a networking communication module (23) in a dormant state, an RFID read-write unit (221) and a weighing unit (222) of an information acquisition module (22) respectively; after the operator selects the taking operation or the placing operation, an ARM chip (21) of the terminal gateway (2) starts one or more cabin doors through an input/output module (24), and acquires the states of the cabin doors through a door magnet unit (224) to generate a door magnet switching value signal; the RFID read-write unit (221) confirms the type information of the electric power materials sent into or taken out of the storage room (12) of the opened cabin door; the weighing unit (222) acquires weight information of electric power materials in the storage room (12) of the currently opened cabin door, and the identity verification information, cabin door state information, class information of the electric power materials and weight information of the electric power materials are all sent to the networking communication module (23), and the networking communication module (23) further sends the information to the ARM chip (21);
S4: the ARM chip (21) generates a picking and placing event message according to a preset format according to the acquired identity verification information and the starting time, the temperature and humidity monitoring signal, cabin door state information fed back by the door magnetic unit (224), category information of electric power materials, weight information of the electric power materials and the estimated quantity of picking and placing power materials; confirming the content corresponding to the picking and placing event message by an operator on site, and storing the picking and placing event message in a storage module (25) of the terminal gateway (2) after the confirmation is finished; and then the ARM chip (21) of the terminal gateway (2) wakes up the hardware encryption module (26), the hardware encryption module (26) reads the newly generated picking and placing event message in the storage module (25), the picking and placing event message is encrypted by adopting an encryption algorithm, and the encrypted picking and placing event message is transmitted to the central gateway (3) in a wireless communication mode through the networking communication module (23).
6. The method for low power consumption unattended operation of a novel electric power material warehouse according to claim 5, wherein the generation of the picking and placing event message according to a preset format simultaneously satisfies the following conditions:
A. taking the moment of passing the identity verification of the current operator as the starting time of the current picking and placing event, so that the on-site operator can pick and place the picking and placing event The time of interaction and completion confirmation of the content corresponding to the message is taken as the ending time of the current picking and placing event, and the time interval between the default starting time of the picking and placing event and the ending time of the picking and placing event is a preset first time threshold T 1 Based on the identity of the operator and the total weight of the electric power materials corresponding to the picking and placing event, a preset first time threshold T is calculated 1 Performing adjustment, increment or adjustment, subtraction; for different operators, a given preset first time threshold T 1 Are not identical; the number of electric power supplies placed in the storage room (12) of one opening cabin door at a time is not less than one;
B. the identification unit (225) of the information acquisition module (22) will require re-authentication of the operator in the field when the first time threshold is about to be reached, e.g. when the first time threshold T is reached 1 The door opening state of the compartment door of the storage room (12) of the currently opened at least one electric material warehouse closed type goods shelf (1) is prolonged by a first time threshold T after the authentication is completed again 1 Is automatically turned off after the completion of the current pick-and-place event, e.g. not at the first time threshold T, or is actively confirmed by an operator in the field to the identity recognition unit (225) 1 The method comprises the steps that identity verification is finished again before the inside, a cabin door of a storage room (12) of at least one closed type goods shelf (1) of an electric power material warehouse which is opened at present is automatically switched to a closed state after a period of time delay, a current picking and placing event is forcedly ended, the moment of forcedly ending the current picking and placing event is taken as the ending time of the current picking and placing event, and the current picking and placing event which is prolonged in the opening state or forcedly ended is recorded in cabin door state information;
C. the RFID read-write unit (221) confirms whether the type of the electric power materials sent into the storeroom (12) by the current operator is consistent with the type of the electric power materials preset in the storeroom (12), and after confirming that the type information of the electric power materials is consistent, the RFID read-write unit (221) rewrites the content of an access state field of the RFID tag preset on the electric power materials passing through a cabin door of the current storeroom (12), registers the number of the rewritten RFID tags and obtains RFID tag read-write data;
D. the weighing unit (222) updates the real-time weight of the electric power materials in the current storage room (12), estimates the variation of the electric power materials in the same category in the storage room (12), and outputs the weight information of the electric power materials comprising the real-time weight of the current electric power materials and the estimated variation of the number;
E. Comparing the variation of the electric materials in the same category obtained by the weighing unit (222) with the variation of the RFID tags confirmed by the RFID reading and writing unit (221), correcting the variation of the electric materials confirmed by the RFID reading and writing unit (221) by taking the variation of the electric materials obtained by the weighing unit (222) as a reference, if the variation of the quantity estimated by the RFID reading and writing unit (221) and the variation estimated by the weighing unit (222) are different, indicating that a phenomenon of missing registration exists, prompting a current operator to restore and return the electric materials in the same storeroom (12) which are fetched and placed last time, removing the content of an access state field of the RFID tag of the electric materials in the same storeroom (12) which are fetched and placed last time by the RFID reading and writing unit (221), and after the electric materials are fetched and returned again, carrying out one-by-one fetching and writing on the access state field of each RFID tag, so that the quantity of the RFID tags registered by the RFID reading and writing unit (221) is consistent with the variation of the electric materials corresponding to the weighing unit (222);
and (3) integrating the identity verification information meeting the conditions, the starting time of the identity verification information, the temperature and humidity monitoring signal, the cabin door state information fed back by the door magnetic unit (224), the type information of the electric power materials, the weight information of the electric power materials and the estimated quantity fields of the power taking and discharging materials, and adding a message head and a message ending mark to obtain a taking and discharging event message.
7. The method according to claim 6, wherein the upper limit of the storage quantity of each storage room (12) of the closed type goods shelf (1) of at least one electric goods warehouse for different types of electric goods is not identical, and the weighing unit (222) estimates that the quantity of the electric goods of the same type in the current storage room (12) reaches the upper limit of the storage quantity, whether or not the first time threshold T is reached 1 Cabin door of current storage room (12)Immediately closing, stopping the operation of storing the same kind of electric power supplies in the storage room (12), only supporting the operation of extracting the electric power supplies, and prompting the electric power supplies to fill the storage room (12) by the identity recognition unit (225), and activating another type of storage room (12) of the closed goods shelf of the current electric power supplies warehouse or the same type of storage room (12) on the closed goods shelf of the adjacent other electric power supplies warehouse by the operator.
8. The method of claim 6, wherein the weighing unit (222) outputs the weight information of the electric power supplies including the real-time weight and the estimated amount of change of the current electric power supplies according to the formula: Δx= |x' -x|oc V CC (R '-R) wherein DeltaX is the real-time weight change obtained by the weighing unit (222), X is the real-time weight before taking and placing, X' is the real-time weight after taking and placing, and V CC And the working voltage provided for the DC power supply module (27), R' is the resistance of the weighing sensor after taking and placing, R is the resistance of the weighing sensor before taking and placing, and the resistance change of the weighing sensor before taking and placing is inversely proportional to the real-time weight change acquired by the weighing unit (222).
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