Electronic tag equipment applied to distribution box data acquisition

Abstract

An electronic tag device applied to distribution box data acquisition comprises an active RFID electronic tag module body, an acquisition mechanism and a receiving mechanism. The acquisition mechanism comprises a temperature detection circuit, a voltage detection circuit, a current detection circuit, an electric leakage detection circuit, an accumulated water detection circuit and a data transmission circuit; the temperature detection circuit, the voltage detection circuit, the current detection circuit, the electric leakage detection circuit, the accumulated water detection circuit and the data transmission circuit are arranged in the distribution box and are electrically connected; the receiving mechanism is provided with a WiFi data receiving and transmitting wireless module, and the WiFi data receiving and transmitting wireless module and the active RFID electronic tag module body are installed in the element box A and electrically connected. Management personnel can know various data of the distribution box in real time according to needs at any time, and workers do not need to go to the site to manually check various data, so that convenience is brought to the workers, and the management cost is correspondingly reduced. Based on the above advantages, the system has a good application prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of label devices, in particular to an electronic label device applied to data collection of distribution boxes. Background Art

[0002] RFID electronic tag is a non-contact automatic identification technology. It identifies target objects through radio frequency signals and obtains relevant data. The identification work does not require manual intervention. As a wireless version of barcodes, RFID electronic tags have advantages that barcodes do not have, such as waterproof, anti-magnetic, high temperature resistance, long service life, large reading distance, data on the tag can be encrypted, larger data storage capacity, easy modification of stored information, etc. (it can also output data in real time). Electronic tags use radio frequency transmission and reception of data. In practical applications, the handheld reader system supporting the RFID electronic tag sends out radio frequency signals. After the RFID electronic tag receives the radio frequency signals sent by the reader, it sends out the product information stored in the chip by virtue of the energy obtained from the induced current (Passive Tag, passive tag or inactive tag; does not require power supply, the disadvantage is that the data transmission distance is relatively short), or actively sends data signals (Active Tag, active tag or active label; the data transmission distance is relatively far, the disadvantage is that it is powered by a battery and the battery needs to be replaced or charged); after the reader reads and decodes the information, it is sent to the information data processing center of the reader system for relevant data processing, and the relevant data information is displayed through the display interface of the reader system.

[0003] A distribution box is an electrical mechanism, which is mainly composed of a voltmeter, an ammeter, a power switch, a leakage protector, a branch circuit breaker, a surge protector, a meter, etc. installed in the box body, and is used for power distribution and control of electrical equipment in the power system. It is usually installed in places such as residences, factories, shopping malls, etc. Its main function is to centrally control and protect electrical equipment, distribute current to each electrical equipment, and ensure the stable operation of the power grid. When the distribution box is actually working, it is affected by the supply voltage, the electrical load, and the working performance of the electrical equipment installed inside, and there is a probability of too high or too low supply voltage, too large current, too high temperature inside the shell, box body leakage, and when there is water accumulation on the ground at the corresponding position, there is a probability of being flooded, which has an adverse impact on the safe and stable power supply of the distribution box to the electrical load. In order to ensure the safe and stable operation of the distribution box, in the prior art, usually relevant management personnel go to the site to manually check the data of the ammeter, voltmeter, thermometer, etc. installed on the distribution box. The above-mentioned manual method of going to the site to check brings inconvenience to relevant management personnel and increases the management cost. In summary, it is particularly necessary to provide an electronic tag device based on the RFID electronic tag body that can collect, transmit and receive various data inside the distribution box. Summary of the Utility Model

[0004] In order to overcome the drawbacks that due to the limitations of the structure of the existing distribution box, relevant management personnel cannot effectively understand relevant data without being on-site, which brings inconvenience to the staff and correspondingly increases the management cost, the present utility model provides an electronic tag device for data collection of a distribution box based on an active RFID electronic tag body. Under the joint action of relevant mechanisms, it can collect the voltage, current, temperature, and whether there is leakage and waterlogging data in the distribution box in real time. After the multiple data are transmitted wirelessly to the management room, the management personnel can, at any time according to needs, through the handheld reader supporting the RFID electronic tag body, understand the multiple data of the distribution box in real time, and can go to the site in time for processing when the data is abnormal, thus bringing convenience to the staff and correspondingly reducing the management cost.

[0005] The technical solution adopted by the present utility model to solve its technical problems is as follows:

[0006] An electronic tag device for data collection of a distribution box, including an active RFID electronic tag module body, characterized in that it further has a collection mechanism and a receiving mechanism; the collection mechanism includes a temperature detection circuit, a voltage detection circuit, a current detection circuit, a leakage detection circuit, a water accumulation detection circuit, and a data transmission circuit; the temperature detection circuit, the voltage detection circuit, the current detection circuit, the leakage detection circuit, the water accumulation detection circuit, and the data transmission circuit are installed in the distribution box; the signal output ends of the temperature detection circuit, the voltage detection circuit, the current detection circuit, the leakage detection circuit, and the water accumulation detection circuit and the multiple signal input ends of the data transmission circuit are electrically connected respectively; the receiving mechanism has a WiFi data transceiver wireless module. The WiFi data transceiver wireless module and the active RFID electronic tag module body are installed in component box A, and the signal output end of the WiFi data transceiver wireless module and the signal input end of the active RFID electronic tag module body are electrically connected.

[0007] Preferably, the temperature detection circuit includes a temperature sensor and a resistor that are electrically connected, and the signal output end of the temperature sensor is connected to one end of the resistor.

[0008] Preferably, the voltage detection circuit includes a rectification module, a capacitor, a variable resistor, and a resistor that are electrically connected. The positive power output end of the rectification module is connected to the positive electrode of the capacitor and one end of the variable resistor, the negative power output end of the power supply module is connected to the negative electrode of the capacitor and one end of the resistor, and the other end of the variable resistor is connected to the other end of the resistor.

[0009] Preferably, the current detection circuit includes an AC current transmitter, a variable resistor, and a resistor that are electrically connected. The positive power output terminal of the AC current transmitter is connected to one end of the variable resistor, the negative power output terminal of the AC current transmitter is connected to one end of the resistor, the other end of the variable resistor is connected to the other end of the resistor, and the phase wire at the total incoming line terminal in the distribution box passes through the central hole of the AC current transmitter.

[0010] Preferably, the leakage detection circuit includes a thyristor and a resistor that are electrically connected. One end of the first resistor is connected to the control electrode of the thyristor, the cathode of the thyristor is connected to one end of the second resistor, and the other end of the first resistor is connected to the metal part in the distribution box through a wire.

[0011] Preferably, the data transmission circuit includes a single-chip microcomputer module and a WiFi data transceiver wireless module that are electrically connected. The two power input ends of the WiFi data transceiver wireless module and the two power input ends of the single-chip microcomputer module are respectively connected, and the signal output end of the single-chip microcomputer module is electrically connected to the signal input end of the WiFi data transceiver wireless module.

[0012] Preferably, the water accumulation detection circuit includes a water accumulation detector and a resistor that are electrically connected. The signal output end of the water accumulation sensor is connected to one end of the resistor.

[0013] The beneficial effects of the present utility model are as follows: Based on the active RFID electronic tag module body, this new type can collect the voltage, current, temperature, and data on whether there is leakage and waterlogging in the distribution box in real time through the acquisition mechanism. A variety of data are transmitted wirelessly through the WiFi data transceiver wireless module to the management room. After the WiFi data transceiver wireless module in the management room receives the corresponding variety of data, the management personnel can, at any time according to needs, through the handheld reader supporting the RFID electronic tag body, understand the variety of data of the distribution box in real time, and can go to the site in time for processing when the data is abnormal. Since there is no need for staff to go to the site to manually check various data, this brings convenience to the staff and correspondingly reduces the management cost. Based on the above advantages, this new type has a good application prospect. Description of the Drawings

[0014] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 、 3 It is a circuit diagram of the present utility model. Detailed Embodiments

[0017] Figure 1 、 2, as shown in Figures 3, an electronic tag device applied to data acquisition of a distribution box includes an active RFID electronic tag module body W6, and also has a collection mechanism and a receiving mechanism; the collection mechanism includes a power module W1 and a temperature detection circuit 1, a voltage detection circuit 2, a current detection circuit 3, a leakage detection circuit 4, a water accumulation detection circuit 5, and a data transmission circuit 6; the power module W1, the temperature detection circuit 1, the voltage detection circuit 2, the current detection circuit 3, the leakage detection circuit 4, the water accumulation detection circuit 5, and the data transmission circuit 6 are installed in a component box 7, and the component box 7 is installed in a distribution box 9; the receiving mechanism includes a power module AW7 and a WiFi data transceiver wireless module W connected by circuit board wiring. The power module AW7, the WiFi data transceiver wireless module W, and the active RFID electronic tag module body W6 are installed on the circuit board in a component box A8, and the component box A8 is installed on the inner wall of the management room, etc.

[0018] Figure 1 , 2As shown in FIGS. 3, the temperature detection circuit includes a temperature sensor W8 and a resistor R connected by circuit board wiring. The signal output terminal 3 of the temperature sensor W8 is connected to one end of the resistor R, and the detection head of the temperature sensor W8 is located outside the front opening of the component box 7. The voltage detection circuit includes a rectification module W2, a capacitor C1, a variable resistor R2, and a resistor R1 connected by circuit board wiring. The positive power output terminal 3 of the rectification module W2 is connected to the positive electrode of the capacitor C1 and one end of the variable resistor R2. The negative power output terminal 4 of the power supply module W2 is connected to the negative electrode of the capacitor C1 and one end of the resistor R1. The other end of the variable resistor R2 is connected to the other end of the resistor R1. The current detection circuit includes an AC current transducer T, a variable resistor R7, and a resistor R6 connected by circuit board wiring. The positive power output terminal of the AC current transducer T is connected to one end of the variable resistor R7. The negative power output terminal of the AC current transducer T is connected to one end of the resistor R6. The other end of the variable resistor R7 is connected to the other end of the resistor R6. The phase wire at the total incoming line end in the distribution box passes through the central hole of the AC current transducer. The leakage detection circuit includes a thyristor VS, resistors R4 and R5 connected by circuit board wiring. One end of the first resistor R4 is connected to the control electrode of the thyristor. The cathode of the thyristor VS is connected to one end of the second resistor R5. The other end of the first resistor R4 is connected to the metal part in the distribution box through a wire. The data transmission circuit includes a single-chip microcomputer module W4 and a WiFi data transceiver wireless module W5 connected by circuit board wiring. The two power input terminals 5 and 1 of the WiFi data transceiver wireless module W5 are respectively connected to the two power input terminals 1 and 2 of the single-chip microcomputer module W4. The signal output terminal of the single-chip microcomputer module W4 is connected to the signal input terminal 8 of the WiFi data transceiver wireless module W5. The water accumulation detection circuit includes a water accumulation detector W3 and a resistor R3 connected by circuit board wiring. The signal output terminal 3 of the water accumulation sensor W3 is connected to one end of the resistor R3, and the detection head 10 of the water accumulation sensor W3 is installed outside the front lower part of the distribution box 9.

[0019] Figure 1 、 2As shown in FIGS. 3, the power input terminals 1 and 2 of the power supply module W1, the power input terminals 1 and 2 of the rectification module W2, and the two poles of the AC 220V power supply are respectively connected by wires. The power output terminals 3 and 4 of the power supply module W1, the power input terminals 1 and 2 of the temperature sensor W8, the negative electrode of the capacitor C1 of the voltage detection circuit (the 4th pin of the power supply module W1 is connected to the negative electrode of the capacitor C1), the other end of the resistor R6 at the power input terminal of the current detection circuit (the 4th pin of the power supply module W1 is connected to the other end of the resistor R6), the anode of the thyristor VS at the power input terminal of the leakage detection circuit (the 3rd pin of the power supply module W1 is connected to the anode of the thyristor VS), the power input terminals 1 and 2 of the water accumulation sensor W3 of the water accumulation detection circuit, and the power input terminals 1 and 2 of the single-chip microcomputer module W4 of the data transmission circuit are respectively connected by wires. The other end of the resistor R at the signal output terminal of the temperature detection circuit, the other end of the adjustable resistor R2 at the signal output terminal of the voltage detection circuit, the other end of the resistor R6 at the signal output terminal of the current detection circuit, the other end of the resistor R5 at the signal output terminal of the leakage detection circuit, the other end of the resistor R3 at the signal output terminal of the water accumulation detection circuit, and the five signal input terminals 5, 4, 3, 6, and 7 of the single-chip microcomputer module W4 of the data transmission circuit are respectively connected by wires. The power input terminals 1 and 2 of the power supply module AW7 and the two poles of the AC 220V power supply are respectively connected by wires. The power output terminals 3 and 4 of the power supply module AW7, the power input terminals 5 and 1 of the WiFi data transceiver wireless module W, and the power input terminals 9 and 8 of the active RFID electronic tag module body W6 are respectively connected by wires. The signal output terminal 4 of the WiFi data transceiver wireless module W and the signal input terminal 5 of the active RFID electronic tag module body W6 are connected by a wire.

[0020] Figure 1 、 2As shown in Figures 3, after the power input terminal of the power module W1 is powered on, the DC 3.3V power supply output from pins 3 and 4 of the power module W1 enters the power input terminals of the temperature detection circuit, voltage detection circuit, current detection circuit, leakage detection circuit, water accumulation detection circuit, and data transmission circuit; after the power input terminal of the power module AW7 is powered on, the DC 3.3V power supply output from pins 3 and 4 of the power module AW7 enters the power input terminals of the WiFi data transceiver wireless module W and the active RFID electronic tag module body W6. After the temperature sensor W8 is powered on and works, affected by the temperature in the distribution box, when the temperature is higher, the signal voltage output from its pin 3 enters pin 5 of the single-chip microcomputer module W4 after being stepped down and current-limited by the resistor R is relatively high, and vice versa, the voltage signal is relatively low. After the voltage detection circuit is powered on and works, when the voltage signal input to the distribution box is relatively high, the voltage signal output from pins 3 and 4 of the rectification module W2 is filtered by the capacitor C1, and after being divided by the adjustable resistor R2 and the resistor R1, the signal voltage at pin 4 of the single-chip microcomputer module W4 is relatively high, and vice versa, the voltage signal is relatively low. After the current detection circuit is powered on and works, when the electrical load is larger, the voltage signal output by the AC current transmitter T is divided by the adjustable resistor R7 and the resistor R6, and the signal voltage at pin 3 of the single-chip microcomputer module W4 is relatively high, and vice versa, the voltage signal is relatively low. After the leakage detection circuit is powered on, when there is no leakage in the distribution box 9, the thyristor VS will not be triggered and conducted, and no voltage signal will be input to pin 6 of the single-chip microcomputer module. When there is leakage in the distribution box 9, the leakage current enters the control pole of the thyristor VS after being stepped down and current-limited by the resistor R4, and the thyristor VS is triggered and conducted. Then, the high level enters pin 6 of the single-chip microcomputer module after being stepped down and current-limited by the resistor R5. After the water accumulation detection circuit is powered on and works, when there is no water accumulation or very little water accumulation on the ground in the corresponding area, the detection head of the water accumulation sensor W3 cannot detect water, and the power supply is not output from pin 3 of the water accumulation sensor W3, and no voltage signal will be input to pin 7 of the single-chip microcomputer module. When there is water accumulation on the ground in the corresponding area, the detection head of the water accumulation sensor W3 detects water, and the power supply output from pin 3 of the water accumulation sensor W3 enters pin 7 of the single-chip microcomputer module after being stepped down and current-limited by the resistor R3. The dynamic change analog voltage signal output with the change of the temperature in the distribution box, the dynamic change analog voltage signal output with the change of the power supply voltage, the dynamic change analog voltage signal output with the change of the current of the electrical load, and the analog voltage signal output with the leakage of the distribution box and the water accumulation on the ground enter the single-chip microcomputer module. The multiplexed analog voltage signals are converted into digital signals by the action of the single-chip microcomputer module W4, and the digital signals are input to the signal input terminal 8 of the WiFi data transceiver wireless module W5. The WiFi data transceiver wireless module W5 transmits the above various data in a wireless manner. Within a certain range (about 100 meters indoors and about 300 meters outdoors), after the indoor WiFi data transceiver wireless module W receives various data, it outputs the data to the signal input terminal of the active RFID electronic tag module body W6.In practical applications, relevant management personnel in the management room hold the receiving surface of the handheld reader system supporting the active RFID electronic tag module body W6 close to the front of the component box A8 at a certain distance. The active RFID electronic tag module body W6 actively sends out various data obtained inside the distribution box. After the reader of the reader system reads and decodes the information, it is sent to the data processing center of the reader system for relevant data processing, and the relevant information (various data inside the distribution box) is displayed through the display interface of the reader system.

[0021] Figure 1 , 2 As shown in Figure 3, through the above, the present new type based on the active RFID electronic tag module body can collect the voltage, current, temperature, and whether there is leakage and waterlogging data inside the distribution box in real time. The various data are wirelessly transmitted to the management room through the WiFi data transceiver wireless module. After the WiFi data transceiver wireless module in the management room receives the corresponding various data, the management personnel can, at any time according to needs, use the handheld reader supporting the RFID electronic tag body to understand the various data of the distribution box in real time, and can go to the site in time for processing when the data is abnormal. Since there is no need for staff to go to the site to manually check various data, it brings convenience to the staff and correspondingly reduces the management cost. Figure 3As shown, the resistances of resistors R, R1, R3, R4, R5, and R6 are 10K, 1K, 10K, 2M, 10K, and 10K respectively; the active RFID electronic tag module body W6 (which can output data in real time) has a model of DSM-81 and has 14 pins, namely power test (control), power test (input), data output, data input, transparent transmission serial port baud rate setting bit 1, transparent transmission serial port baud rate setting bit 0, reset control, power supply (negative), power supply (positive), control red light (output), control green light (output), control buzzer (output), transparent transmission status, activity indication port (except for pins 9, 8, and 5, other pins are left floating). The thyristor VS has a model of MCR100-1; the power supply modules W1 and AW7 are finished products of AC 220V to DC 3.3V power supply modules; the adjustable resistors R2 and R7 have resistances of 470K (adjusted to 100K and 50K respectively); the AC current transmitter T is a finished product of an AC current transmitter with a model of XJ-CK-11. The output voltage signal at the output terminals 3 and 4 changes dynamically from 0 to 5V according to the detected current; the WiFi data transceiver wireless modules W5 and W are finished products of WiFi data transceiver wireless modules with a model of ESP-01S and have eight pins. Pin 1 is the negative power supply input terminal, pin 5 is the positive power supply input terminal, pin 4 is the data receiving terminal, pin 8 is the data transmitting terminal, pin 2 is the general-purpose IO interface terminal (internally pulled up), pin 3 is the working mode selection interface terminal (left floating for the working mode, pulled down for the download mode), pin 6 is the reset interface terminal (reset by inputting a low level, and can also be left floating or connected to an external MCU), and pin 7 is the enable connection terminal (enabled by a high level, connected to pin 5, disabled by a low level); the rectifier module W2 is a bridge rectifier with a model of KBL406; the capacitor C1 (for filtering) is an electrolytic capacitor with a model of 470μF / 25V; the temperature sensor W8 is a temperature sensor of the brand ELECFANS / Keyanli and has two power supply input terminals, one voltage signal output terminal, and a digital switch quantity signal output terminal (this new type is left floating); the water accumulation detector W3 is a finished product of a water accumulation detector with a model of HSM-WT202 and has two power supply input terminals and one voltage signal output terminal. When the split-type detection head detects water, the signal output terminal outputs power, otherwise it does not output (the power supply input terminals of the water accumulation detector W3 are connected to the power supply output terminals 3 and 4 of the DC boost module of the ELECFANS / Keyanli brand. The power supply input terminals 1 and 2 of the DC boost module are connected to the power supply output terminal of the power supply module W1. The DC 3.3V power supply output by the power supply module W1 is converted to 12V by the DC boost module to supply power to the water accumulation detector W3 with a working voltage of DC 12V); the single-chip microcomputer module W4 has a model of STM32 (it is an existing mature technology for the single-chip microcomputer module to collect multiple analog signals and convert them into digital signals for output).

[0022] It should be noted that although the above content has shown and described the embodiments of the present invention, the implementation manners do not only include an independent technical solution. This narrative manner of the specification is only for clarity. For those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention, thereby forming other implementation manners that can be understood by those skilled in the art. Therefore, the protection scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electronic tag device applied to data acquisition of a distribution box, including an active RFID electronic tag module body, characterized in that, It also has a collection mechanism and a receiving mechanism; the collection mechanism includes a temperature detection circuit, a voltage detection circuit, a current detection circuit, a leakage detection circuit, a water accumulation detection circuit, and a data transmission circuit; the temperature detection circuit, the voltage detection circuit, the current detection circuit, the leakage detection circuit, the water accumulation detection circuit, and the data transmission circuit are installed in the distribution box; the signal output ends of the temperature detection circuit, the voltage detection circuit, the current detection circuit, the leakage detection circuit, and the water accumulation detection circuit and the multiple signal input ends of the data transmission circuit are electrically connected respectively; the receiving mechanism has a WiFi data transceiver wireless module, the WiFi data transceiver wireless module and the active RFID electronic tag module body are installed in component box A, and the signal output end of the WiFi data transceiver wireless module and the signal input end of the active RFID electronic tag module body are electrically connected.

2. The electronic tag device applied to the data acquisition of the distribution box according to claim 1, wherein, The temperature detection circuit includes a temperature sensor and a resistor that are electrically connected, and the signal output end of the temperature sensor is connected to one end of the resistor.

3. An electronic tag device applied to data collection of a distribution box according to claim 1, characterized in that, The voltage detection circuit includes a rectification module, a capacitor, a variable resistor, and a resistor that are electrically connected. The positive power output end of the rectification module is connected to the positive electrode of the capacitor and one end of the variable resistor. The negative power output end of the power supply module is connected to the negative electrode of the capacitor and one end of the resistor. The other end of the variable resistor is connected to the other end of the resistor.

4. An electronic tag device applied to data collection of a distribution box according to claim 1, characterized in that, The current detection circuit includes an alternating current transmitter, a variable resistor, and a resistor that are electrically connected. The positive power output end of the alternating current transmitter is connected to one end of the variable resistor. The negative power output end of the alternating current transmitter is connected to one end of the resistor. The other end of the variable resistor is connected to the other end of the resistor. The phase wire at the total incoming line end in the distribution box passes through the central hole of the alternating current transmitter.

5. An electronic tag device applied to data acquisition of a distribution box according to claim 1, characterized in that, The leakage detection circuit includes a thyristor and a resistor that are electrically connected. One end of the first resistor is connected to the control electrode of the thyristor. The cathode of the thyristor is connected to one end of the second resistor. The other end of the first resistor is connected to the metal part in the distribution box through a wire.

6. An electronic tag device applied to the data acquisition of a distribution box according to claim 1, characterized in that, The data transmission circuit includes a single-chip microcomputer module and a WiFi data transceiver wireless module that are electrically connected. The two power input ends of the WiFi data transceiver wireless module and the two power input ends of the single-chip microcomputer module are connected respectively. The signal output end of the single-chip microcomputer module and the signal input end of the WiFi data transceiver wireless module are electrically connected.

7. An electronic tag device applied to data acquisition of a distribution box according to claim 1, characterized in that, The water accumulation detection circuit includes a water accumulation detector and a resistor that are electrically connected, and the signal output end of the water accumulation sensor is connected to one end of the resistor.

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