CN210039006U - Host for pulse electronic fence - Google Patents
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- CN210039006U CN210039006U CN201920492867.1U CN201920492867U CN210039006U CN 210039006 U CN210039006 U CN 210039006U CN 201920492867 U CN201920492867 U CN 201920492867U CN 210039006 U CN210039006 U CN 210039006U
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Abstract
The utility model belongs to the technical field of the security protection technique and specifically relates to indicate a host computer for pulse fence, which comprises a bod, be provided with main control chip U14 in the organism, be used for external fence and send pulse signal's pulse module be used for receiving wireless control signal's wireless module, be used for sending warning signal's warning module and be used for doing after fence is touched main control chip U14 the pulse module wireless module with the power module of wireless module power supply. The utility model discloses a be provided with wireless module in the host computer, let the controller come to the mode that the host computer sent command signal through other terminals promptly, realize the effect of remote control host computer, the controller of being convenient for controls the work of pulse fence at any time.
Description
Technical Field
The utility model belongs to the technical field of the security protection technique and specifically relates to indicate a host computer for pulse fence.
Background
Pulse electronic fence is one of the security protection device that is used for preventing that external lawless persons from getting into private area, and it is through constantly carrying high-voltage pulse signal in the wire rod of past rail, when this wire rod was touched to outsider, but can not threaten life to outsider's sensation of touching high-voltage electricity, and the wire rod leads to pulse signal to change because of being touched, has played the effect of reporting to the police.
The pulse electronic fence is basically controlled by a host, however, the current pulse electronic fence has the following disadvantages: when the pulse electronic fence needs to be controlled, the user can control the pulse electronic fence by walking in front of the host, and if the pulse electronic fence is arranged in a remote place, the user is undoubtedly inconvenienced.
Disclosure of Invention
The utility model discloses problem to prior art provides a host computer for pulse fence, can send control signal to the host computer in the department of keeping away to reach remote control pulse fence's effect.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a pair of a host computer for pulse fence, which comprises a bod, be provided with in the organism
The main control chip U14;
the wireless control system comprises a pulse module and a wireless module, wherein the pulse module is used for connecting an external electronic fence and sending a pulse signal, and the wireless module is used for receiving a wireless control signal;
a warning module for sending out a warning signal after the electronic fence is touched, and
and the power supply module is used for supplying power to the main control chip U14, the pulse module, the wireless module and the warning module.
Further, the model of the main control chip U14 is STM32F101VBT6, pin 21, pin 73, pin 6, pin 50, pin 75, pin 100, pin 28, pin 11 and pin 22 of the main control chip U14 all connect in the power supply module, pin 33, pin 36, pin 45 and pin 46 of the main control chip U14 all connect in the pulse module, pin 62 of the main control chip U14 connect in the wireless module.
Further, the power supply module comprises a first voltage stabilizing circuit for reducing the voltage of 24V to 12V, a second voltage stabilizing circuit for reducing the voltage of 12V to 5V, and a third voltage stabilizing circuit for reducing the voltage of 5V to 3.3V, wherein the first voltage stabilizing circuit comprises a voltage stabilizing chip U1, an RC circuit, an inductor L1, a diode D1, a diode D3, a capacitor C17, and a resistor R3, the model of the chip U1 is LM2596_ ADJ, a pin 1 of the chip U1 is used for externally connecting a 24V power supply, a pin 3 and a pin 5 of the chip U1 are grounded, a pin 2 of the chip U1 is connected to the anode of the diode D3 through the inductor L1, and the cathode of the diode D3 is used for outputting the voltage of 12V; the RC circuit is arranged between a pin 4 of the chip U1 and the anode of the diode D3, a pin 3 and a pin 5 of the chip U1 are connected and then connected to the pin 4 through the resistor R3, a pin 3 and a pin 5 of the chip U1 are connected and then connected to the pin 2 through the diode D1, and a pin 3 and a pin 5 of the chip U1 are connected and then connected to the anode of the diode D3 through the capacitor C17;
the input end of the second voltage stabilizing circuit and the pulse module are connected to the cathode of the diode D3.
Furthermore, the second voltage stabilizing circuit comprises a chip U2, an inductor L3, a diode D2 and a plurality of first protection capacitors connected in parallel, the model of the chip U2 is LM3596_5, a pin 1 of the chip U2 is connected to the cathode of the diode D3, a pin 2 of the chip U2 outputs 5V voltage after passing through the inductor L3, the output end of the inductor L3 is connected to a pin 4 of the chip U2, a pin 5 and a pin 3 of the chip U2 are connected and then connected to the pin 2 through the diode D2, and a pin 5 and a pin 3 of the chip U2 are connected and then connected to the pin 4 through the plurality of first protection capacitors;
the wireless module and the warning module are connected to the output end of the inductor L3.
Furthermore, the third voltage stabilizing circuit comprises a chip U4 and second protection capacitors connected in parallel, the model of the chip U4 is LM1084_3.3, a pin 1 of the chip U4 is connected to the output end of the second voltage stabilizing circuit, a pin 2 of the chip U4 is grounded, a pin 3 of the chip U4 is used for outputting 3.3V voltage, and a plurality of second protection capacitors are arranged between the pin 2 and the pin 3 of the chip U4;
the master chip U14 and the pulse module are both connected to pin 3 of the chip U4.
Further, the pulse module comprises a chip U3, a diode D6, a diode D7, a switching tube Q1, a diode D36, a transformer T2 and an output module for connecting wires of an electronic fence, wherein the model of the chip U3 is IR2125S, a pin 3 of the chip U3 is connected to the main control chip U14 and the power supply module, and a pin 1 of the chip U3 is connected to the power supply module; the pin 14 of the main control chip U14 is connected to the control end of the switch tube Q1, the two switch ends of the switch tube Q1 are respectively connected to the input end of the transformer, and the output end of the transformer is connected to the output module.
Further, the output module includes a switch tube Q4, a switch tube Q6, an optocoupler switch Q8, an inductor L5 and a transformer T3, the control end of the switch tube Q4 is connected to the main control chip U14, a switch end of the switch tube Q4 is grounded, another switch end is connected to the control end of the switch tube Q5, a switch end of the switch tube Q5 is connected to the power supply module, another switch end of the switch tube Q5 is connected to the control end of the optocoupler switch Q8, the output end of the transformer T3 is connected to the output end of the optocoupler switch Q8 and the output end of the transformer T2, and the output end of the transformer T3 is used for connecting wires of the external electronic fence.
Further, the wireless module includes a chip U5, a capacitor C14, a capacitor C16, a crystal oscillator Y1, a capacitor C15, an inductor L2, an inductor L6, a capacitor C25, and a capacitor C42, the model of the chip U5 is SYN531, a pin 5 of the chip U5 is connected to the main control chip U14, a pin 6 and a pin 7 of the chip U5 are grounded via the capacitor C14 and the capacitor C16, respectively, and a pin 8 of the chip U5 is grounded via the crystal oscillator Y1; pin 3 of the chip U5 is connected to the power supply module, and pin 2 of the chip U5 is connected to the power supply module through the capacitor C15; one end of the inductor L2 is connected to a pin 1 of the chip U5, the other end of the inductor L2 is grounded, one end of the inductor L6 is connected to a pin 1 of the chip U5, the other end of the inductor L6 is grounded, the capacitor C25 is disposed between the inductor L2 and the inductor L6, a pin 1 of the chip U5 is used for receiving a wireless signal after passing through the capacitor C25, and a pin 2 and a pin 4 of the chip U5 are both used for receiving a wireless signal after passing through the capacitor C42.
Furthermore, the storage module is used for storing data and comprises a chip U6 with the model number of 24C02, and the pin 5 and the pin 6 of the chip U6 are both connected to the main control chip U14.
Furthermore, the clock circuit is used for displaying time and is connected to the main control chip U14.
The utility model has the advantages that: the utility model discloses a be provided with wireless module in the organism, let the controller come to the mode that the host computer sent command signal through other terminals promptly, realize the effect of remote control host computer, the controller of being convenient for controls the work of pulse fence at any time.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a circuit diagram of the main control chip of the present invention.
Fig. 3 is a circuit diagram of the wireless module of the present invention.
Fig. 4 is a circuit diagram of the pulse module of the present invention.
Fig. 5 is a circuit diagram of the warning module of the present invention.
Fig. 6 is a circuit diagram of the power supply module of the present invention.
Fig. 7 is a circuit diagram of the storage module of the present invention.
Fig. 8 is a circuit diagram of the clock circuit of the present invention.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 5, the utility model provides a host for pulse electronic fence, which comprises a body, be provided with in the organism
The main control chip U14;
the wireless control system comprises a pulse module and a wireless module, wherein the pulse module is used for connecting an external electronic fence and sending a pulse signal, and the wireless module is used for receiving a wireless control signal;
a warning module for sending out a warning signal after the electronic fence is touched, and
and the power supply module is used for supplying power to the main control chip U14, the pulse module, the wireless module and the warning module.
The utility model discloses a be provided with wireless module in the organism, let the controller come to the mode that the host computer sent command signal through other terminals promptly, realize the effect of remote control host computer, the controller of being convenient for controls the work of pulse fence at any time.
As shown in fig. 2, in this embodiment, the model of the main control chip U14 is STM32F101VBT6, the pin 21, the pin 73, the pin 6, the pin 50, the pin 75, the pin 100, the pin 28, the pin 11, and the pin 22 of the main control chip U14 are all connected to the power supply module, the pin 33, the pin 36, the pin 45, and the pin 46 of the main control chip U14 are all connected to the pulse module, and the pin 62 of the main control chip U14 is connected to the wireless module. Namely the utility model discloses a STM32F101VBT6 can realize control and receipt to pulse signal as master control chip 1 to accurately make corresponding action according to pulse signal's change, thereby guaranteed the utility model discloses accurate control to pulse fence.
In this embodiment, since the operating voltages of the modules are different, even different components of the same module need different voltages to be activated, therefore, as shown in fig. 7, the power supply module comprises a first voltage stabilizing circuit for reducing the voltage of 24V to 12V, a second voltage stabilizing circuit for reducing the voltage of 12V to 5V and a third voltage stabilizing circuit for reducing the voltage of 5V to 3.3V, the first voltage stabilizing circuit comprises a voltage stabilizing chip U1, an RC circuit, an inductor L1, a diode D1, a diode D3, a capacitor C17 and a resistor R3, the model of the chip U1 is LM 2596-ADJ, pin 1 of the chip U1 is used for externally connecting a 24V power supply, the pin 3 and the pin 5 of the chip U1 are grounded, the pin 2 of the chip U1 is connected to the anode of the diode D3 through the inductor L1, and the cathode of the diode D3 is used for outputting 12V voltage; the RC circuit is arranged between a pin 4 of the chip U1 and the anode of the diode D3, a pin 3 and a pin 5 of the chip U1 are connected and then connected to the pin 4 through the resistor R3, a pin 3 and a pin 5 of the chip U1 are connected and then connected to the pin 2 through the diode D1, and a pin 3 and a pin 5 of the chip U1 are connected and then connected to the anode of the diode D3 through the capacitor C17; the input end of the second voltage stabilizing circuit and the pulse module are connected to the cathode of the diode D3.
Through first voltage stabilizing circuit promptly, the input the utility model discloses a voltage falls to the required 12V of pulse module work from 24V and exports to let the pulse module work under normal operating voltage, guaranteed the life of pulse module. Specifically, input the utility model discloses a 24V voltage, preferred adopt POE power supply to the security of power supply has been guaranteed.
Specifically, as shown in fig. 6, the second voltage stabilizing circuit includes a chip U2, an inductor L3, a diode D2, and a plurality of first protection capacitors connected in parallel, where the model of the chip U2 is LM3596_5, a pin 1 of the chip U2 is connected to a negative electrode of the diode D3, a pin 2 of the chip U2 outputs a 5V voltage through the inductor L3, an output end of the inductor L3 is connected to a pin 4 of the chip U2, a pin 5 and a pin 3 of the chip U2 are connected to the pin 2 through the diode D2, and a pin 5 and a pin 3 of the chip U2 are connected to a pin 4 through the plurality of first protection capacitors; the wireless module and the warning module are connected to the output end of the inductor L3.
The voltage reduced to 12V from the first voltage stabilizing module is used for continuing inputting to the chip U2 besides supplying power to the pulse module, and the 12V voltage is reduced to 5V by the chip U2 for outputting, so that power is supplied to the wireless module and the warning module; and the utility model discloses the chip of LM3596_5 as second voltage stabilizing module that adopts can be stable, accurately drop to 5V 12V voltage to the effect of stable, normal power supply has been reached.
Specifically, as shown in fig. 6, the third voltage stabilizing circuit includes a chip U4 and second protection capacitors connected in parallel, the model of the chip U4 is LM1084_3.3, a pin 1 of the chip U4 is connected to the output end of the second voltage stabilizing circuit, a pin 2 of the chip U4 is grounded, a pin 3 of the chip U4 is used for outputting 3.3V voltage, and a plurality of second protection capacitors are disposed between the pin 2 and the pin 3 of the chip U4; the master chip U14 and the pulse module are both connected to pin 3 of the chip U4. The voltage is reduced to 3.3V through the chip U4, so that the main control chip 1 powered by the second voltage stabilizing circuit and the control end of the pulse module are both operated under normal voltage, and the safety of the main control chip 1 and the pulse module is ensured.
As shown in fig. 6, in this embodiment, the pulse module includes a chip U3, a diode D6, a diode D7, a switch Q1, a diode D36, a transformer T2, and an output module for connecting wires of an electronic fence, the model of the chip U3 is IR2125S, a pin 3 of the chip U3 is connected to the main control chip U14 and the power supply module, and a pin 1 of the chip U3 is connected to the power supply module; a pin 14 of the main control chip U14 is connected to the control end of the switch tube Q1, two switch ends of the switch tube Q1 are respectively connected to the input end of the transformer, and the output end of the transformer is connected to the output module; specifically, the switching tube Q1 may be a triode, but it is preferable to use a MOS transistor as shown in fig. 4, that is, the control terminal of the switching tube Q1 is a gate, and the two switching terminals are a source and a drain, respectively.
When the main control chip U14 sends a PWM signal to the chip U3, the chip U3 controls the switching transistor Q1 to be turned on according to the PWM signal, and the switching transistor Q1 is turned on to enable the output terminal of the transformer 2 to pass through the current, so that the output terminal of the transformer T2 can generate a 400V voltage due to induction and output the voltage through the output module.
Specifically, as shown in fig. 5, the output module includes a switch tube Q4, a switch tube Q6, an optocoupler switch Q8, an inductor L5, and a transformer T3, a control end of the switch tube Q4 is connected to the main control chip U14, a switch end of the switch tube Q4 is grounded, another switch end is connected to the control end of the switch tube Q5, a switch end of the switch tube Q5 is connected to the power supply module, another switch end of the switch tube Q5 is connected to the control end of the optocoupler switch Q8, an output end of the transformer T3 is connected to an output end of the optocoupler switch Q8 and an output end of the transformer T2, and an output end of the transformer T3 is used for connecting wires of an external electronic fence.
When the output module passes through the 400V voltage, the main control chip U14 is further required to send a control signal to the switching tube Q3, and the switching tube Q3 triggers the switching tube Q5 to conduct, so that the optocoupler switch Q8 can be powered on and control the input end of the transformer T4 to be in a working state, and the transformer T4 receives the 400V voltage in the working state and converts the voltage into a pulse signal. Since the 400V voltage is high, but is converted from 12V, it is only a transient voltage and does not pose a life threat to external touch persons.
As shown in fig. 3, in this embodiment, the wireless module includes a chip U5, a capacitor C14, a capacitor C16, a crystal oscillator Y1, a capacitor C15, an inductor L2, an inductor L6, a capacitor C25, and a capacitor C42, the model of the chip U5 is SYN531, a pin 5 of the chip U5 is connected to the main control chip U14, a pin 6 and a pin 7 of the chip U5 are grounded via the capacitor C14 and the capacitor C16, respectively, and a pin 8 of the chip U5 is grounded via the crystal oscillator Y1; pin 3 of the chip U5 is connected to the power supply module, and pin 2 of the chip U5 is connected to the power supply module through the capacitor C15; one end of the inductor L2 is connected to a pin 1 of the chip U5, the other end of the inductor L2 is grounded, one end of the inductor L6 is connected to a pin 1 of the chip U5, the other end of the inductor L6 is grounded, the capacitor C25 is disposed between the inductor L2 and the inductor L6, a pin 1 of the chip U5 is used for receiving a wireless signal after passing through the capacitor C25, and a pin 2 and a pin 4 of the chip U5 are both used for receiving a wireless signal after passing through the capacitor C42. Through SYN531 chip promptly as wireless signal's receiving chip, make the utility model discloses can accurately receive and transmit this wireless control signal to reach the effect of accurate control.
As shown in fig. 7 and 8, in this embodiment, the present invention further includes a storage module for storing data, the storage module includes a chip U6 with a model number of 24C02, and the pin 5 and the pin 6 of the chip U6 are both connected to the main control chip U14; and simultaneously, the utility model discloses still including the clock circuit who is used for showing the time, clock circuit connect in master control chip U14.
The storage module is used for storing the logs in the actual work of the utility model, so that a controller can look up the logs at any time; the clock circuit 7 is used for accurately recording the time of the occurrence of the log event, so that the recording and the collection are convenient for a controller.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (10)
1. A host computer for pulse electronic fence, includes the organism, its characterized in that: is arranged in the machine body
The main control chip U14;
the wireless control system comprises a pulse module and a wireless module, wherein the pulse module is used for connecting an external electronic fence and sending a pulse signal, and the wireless module is used for receiving a wireless control signal;
a warning module for sending out a warning signal after the electronic fence is touched, and
and the power supply module is used for supplying power to the main control chip U14, the pulse module, the wireless module and the warning module.
2. The host for a pulsed electronic fence according to claim 1, wherein: the model of master control chip U14 is STM32F101VBT6, pin 21, pin 73, pin 6, pin 50, pin 75, pin 100, pin 28, pin 11 and pin 22 of master control chip U14 all connect in power module, pin 33, pin 36, pin 45 and pin 46 of master control chip U14 all connect in pulse module, pin 62 of master control chip U14 connect in wireless module.
3. The host for a pulsed electronic fence according to claim 1, wherein: the power supply module comprises a first voltage stabilizing circuit for reducing the voltage of 24V to 12V, a second voltage stabilizing circuit for reducing the voltage of 12V to 5V and a third voltage stabilizing circuit for reducing the voltage of 5V to 3.3V, wherein the first voltage stabilizing circuit comprises a voltage stabilizing chip U1, an RC circuit, an inductor L1, a diode D1, a diode D3, a capacitor C17 and a resistor R3, the model of the chip U1 is LM2596_ ADJ, a pin 1 of the chip U1 is used for externally connecting a 24V power supply, a pin 3 and a pin 5 of the chip U1 are grounded, a pin 2 of the chip U1 is connected to the anode of the diode D3 through the inductor L1, and the cathode of the diode D3 is used for outputting the voltage of 12V; the RC circuit is arranged between a pin 4 of the chip U1 and the anode of the diode D3, a pin 3 and a pin 5 of the chip U1 are connected and then connected to the pin 4 through the resistor R3, a pin 3 and a pin 5 of the chip U1 are connected and then connected to the pin 2 through the diode D1, and a pin 3 and a pin 5 of the chip U1 are connected and then connected to the anode of the diode D3 through the capacitor C17;
the input end of the second voltage stabilizing circuit and the pulse module are connected to the cathode of the diode D3.
4. The host for a pulsed electronic fence according to claim 3, wherein: the second voltage stabilizing circuit comprises a chip U2, an inductor L3, a diode D2 and a plurality of first protection capacitors connected in parallel, the model of the chip U2 is LM3596_5, a pin 1 of the chip U2 is connected to the cathode of the diode D3, a pin 2 of the chip U2 outputs 5V voltage after passing through the inductor L3, the output end of the inductor L3 is connected to a pin 4 of the chip U2, a pin 5 and a pin 3 of the chip U2 are connected and then connected to the pin 2 through the diode D2, and a pin 5 and a pin 3 of the chip U2 are connected and then connected to the pin 4 through the plurality of first protection capacitors;
the wireless module and the warning module are connected to the output end of the inductor L3.
5. The host for a pulsed electronic fence according to claim 3, wherein: the third voltage stabilizing circuit comprises a chip U4 and second protection capacitors connected in parallel, the model of the chip U4 is LM1084_3.3, a pin 1 of the chip U4 is connected to the output end of the second voltage stabilizing circuit, a pin 2 of the chip U4 is grounded, a pin 3 of the chip U4 is used for outputting 3.3V voltage, and the second protection capacitors are arranged between the pin 2 and the pin 3 of the chip U4;
the master chip U14 and the pulse module are both connected to pin 3 of the chip U4.
6. The host for a pulsed electronic fence according to claim 1, wherein: the pulse module comprises a chip U3, a diode D6, a diode D7, a switching tube Q1, a diode D36, a transformer T2 and an output module for connecting wires of an electronic fence, wherein the model of the chip U3 is IR2125S, a pin 3 of the chip U3 is connected to the main control chip U14 and the power supply module, and a pin 1 of the chip U3 is connected to the power supply module; the pin 14 of the main control chip U14 is connected to the control end of the switch tube Q1, the two switch ends of the switch tube Q1 are respectively connected to the input end of the transformer, and the output end of the transformer is connected to the output module.
7. The host for a pulsed electronic fence according to claim 6, wherein: the output module includes switch tube Q4, switch tube Q6, opto-coupler switch Q8, inductance L5 and transformer T3, switch tube Q4's control end connect in master control chip U14, a switch end ground connection of switch tube Q4, another switch end connect in switch tube Q5's control end, a switch end of switch tube Q5 connect in the power module, another switch end of switch tube Q5 connect in opto-coupler switch Q8's control end, transformer T3's output connect respectively in opto-coupler switch Q8's output and transformer T2's output, transformer T3's output is used for the wire rod of external electronic fence.
8. The host for a pulsed electronic fence according to claim 1, wherein: the wireless module comprises a chip U5, a capacitor C14, a capacitor C16, a crystal oscillator Y1, a capacitor C15, an inductor L2, an inductor L6, a capacitor C25 and a capacitor C42, wherein the model of the chip U5 is SYN531, a pin 5 of the chip U5 is connected to the main control chip U14, a pin 6 and a pin 7 of the chip U5 are grounded through the capacitor C14 and the capacitor C16 respectively, and a pin 8 of the chip U5 is grounded through the crystal oscillator Y1; pin 3 of the chip U5 is connected to the power supply module, and pin 2 of the chip U5 is connected to the power supply module through the capacitor C15; one end of the inductor L2 is connected to a pin 1 of the chip U5, the other end of the inductor L2 is grounded, one end of the inductor L6 is connected to a pin 1 of the chip U5, the other end of the inductor L6 is grounded, the capacitor C25 is disposed between the inductor L2 and the inductor L6, a pin 1 of the chip U5 is used for receiving a wireless signal after passing through the capacitor C25, and a pin 2 and a pin 4 of the chip U5 are both used for receiving a wireless signal after passing through the capacitor C42.
9. The host for a pulsed electronic fence according to claim 1, wherein: the storage module is used for storing data and comprises a chip U6 with the model number of 24C02, and a pin 5 and a pin 6 of the chip U6 are both connected to the main control chip U14.
10. The host for a pulsed electronic fence according to claim 1, wherein: the clock circuit is connected to the main control chip U14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920492867.1U CN210039006U (en) | 2019-04-10 | 2019-04-10 | Host for pulse electronic fence |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920492867.1U CN210039006U (en) | 2019-04-10 | 2019-04-10 | Host for pulse electronic fence |
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| CN210039006U true CN210039006U (en) | 2020-02-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018657A (en) * | 2019-04-10 | 2019-07-16 | 东莞市拓天智能科技有限公司 | A kind of tension electronic fence system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018657A (en) * | 2019-04-10 | 2019-07-16 | 东莞市拓天智能科技有限公司 | A kind of tension electronic fence system |
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