Wireless sink node relay circuit and data acquisition system

Abstract

The utility model provides a wireless sink node relay circuit and a data acquisition system, and relates to the technical field of data acquisition. The wireless sink node relay circuit comprises a processor, a first communication unit, a second communication unit, a displacement sensor, an alarm unit and a satellite positioning unit, and the processor is electrically connected with the first communication unit, the second communication unit, the displacement sensor, the alarm unit and the satellite positioning unit. The first communication unit is also used for being in communication connection with an environment sensor, and the second communication unit is used for being in communication connection with an upper computer; wherein the processor is used for receiving a monitoring signal sent by the environment sensor through the first communication unit, and forwarding the monitoring signal to the upper computer through the second communication unit; and the processor is also used for driving the alarm unit to give an alarm when receiving the displacement signal sent by the displacement sensor, driving the satellite positioning unit to position and sending a positioning signal to an upper computer. The anti-theft lock has the advantage that the anti-theft function can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of data acquisition, and in particular to a wireless aggregation node relay circuit and a data acquisition system. Background Art

[0002] A cable is a device for transmitting electric energy or signals, and is usually composed of several or several groups of wires. In the prior art, when laying cables, the cables are often laid underground, and the underground cables are inspected and repaired through structures such as cable wells.

[0003] Since underground power pipelines are widely distributed and have complex environments, in order to prevent cables from burning or exploding, it is necessary to lay a variety of sensors on the cables to achieve safe detection of underground cables.

[0004] On this basis, in order to facilitate the effective transmission of sensor data back to the host computer, a wireless data aggregation node device (repeater) needs to be set up. After the sensor transmits the data to the repeater, the repeater forwards the data to the host computer, and then the data analysis is realized through the host computer.

[0005] However, since the repeater is placed on the well, there is a risk of the repeater being stolen in actual application. Utility Model Content

[0006] The purpose of the present application is to provide a wireless aggregation node relay circuit and a data acquisition system to solve the problem of repeaters being stolen in the prior art.

[0007] In order to achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0008] On the one hand, an embodiment of the present application provides a wireless aggregation node relay circuit, the wireless aggregation node relay circuit includes a processor, a first communication unit, a second communication unit, a displacement sensor, an alarm unit and a satellite positioning unit, the processor is electrically connected to the first communication unit, the second communication unit, the displacement sensor, the alarm unit and the satellite positioning unit respectively, the first communication unit is also used to communicate with the environmental sensor, and the second communication unit is used to communicate with the host computer; wherein,

[0009] The processor is used to receive the monitoring signal sent by the environmental sensor through the first communication unit, and forward the monitoring signal to the host computer through the second communication unit;

[0010] The processor is also used to drive the alarm unit to sound an alarm when receiving the displacement signal sent by the displacement sensor, and drive the satellite positioning unit to perform positioning, and send the positioning signal to the host computer.

[0011] Optionally, the alarm unit includes an alarm, a first switch and a second switch, wherein the first switch is electrically connected to the alarm, the driving power supply and the processor respectively, and the second switch is also electrically connected to the alarm, the driving power supply and the processor respectively, and the second switch is also grounded; wherein,

[0012] The processor is used for controlling the first switch to drive the alarm unit to alarm when receiving the displacement signal sent by the displacement sensor;

[0013] The processor is further configured to control the second switch to act upon receiving a stop alarm signal, so as to drive the alarm unit to stop alarming.

[0014] Optionally, the first switch includes a relay consisting of a first coil and a normally open contact, the second switch includes a relay consisting of a second coil and a normally closed contact, one end of the first coil and the second coil is connected to a driving power supply, the other end of the first coil and the second coil is electrically connected to the processor, one end of the normally open contact, the alarm unit and the normally closed contact are connected in series in sequence, and the other end is connected to the driving power supply.

[0015] Optionally, the alarm unit includes a buzzer or a photoelectric alarm.

[0016] Optionally, the repeater further includes a reset unit, which is electrically connected to the enable terminal of the processor and is used to reset the processor.

[0017] Optionally, the reset unit includes a switch tube, a capacitor component and a reset button, the first end of the capacitor component is electrically connected to the reset button, the second end of the capacitor component is electrically connected to the control end of the switch tube, the switch tube is also electrically connected to the enable end of the processor, and the enable end of the processor and the reset button are also used to be electrically connected to a driving power supply; wherein,

[0018] When the capacitor component is in a charging state, the switch tube is turned on;

[0019] When the capacitor component is in a charging completion state, the switch tube is turned off.

[0020] Optionally, the reset unit further includes a first resistor, one end of the first resistor is electrically connected to the second end of the capacitor component, and the other end of the first resistor is grounded.

[0021] Optionally, the reset unit further includes a second resistor, one end of the second resistor is electrically connected to the first end of the capacitor component, and the other end of the second resistor is grounded.

[0022] Optionally, the first communication unit includes an RFID communication unit and a BLE communication unit, and the second communication unit includes a 4G communication unit.

[0023] On the other hand, an embodiment of the present application also provides a data acquisition system, which includes an environmental sensor, a host computer and the above-mentioned wireless aggregation node relay circuit, the wireless aggregation node relay circuit is communicatively connected to the environmental sensor through the first communication unit, and the wireless aggregation node relay circuit is also communicatively connected to the host computer through the second communication circuit.

[0024] Compared with the prior art, this application has the following beneficial effects:

[0025] The present application provides a wireless convergence node relay circuit and data acquisition system, the wireless convergence node relay circuit includes a processor, a first communication unit, a second communication unit, a displacement sensor, an alarm unit and a satellite positioning unit, the processor is electrically connected to the first communication unit, the second communication unit, the displacement sensor, the alarm unit and the satellite positioning unit respectively, the first communication unit is also used for communication connection with the environmental sensor, and the second communication unit is used for communication connection with the host computer; wherein the processor is used for receiving the monitoring signal sent by the environmental sensor through the first communication unit, and forwarding the monitoring signal to the host computer through the second communication unit; the processor is also used for driving the alarm unit to alarm when receiving the displacement signal sent by the displacement sensor, and driving the satellite positioning unit to locate at the same time, and sending the positioning signal to the host computer. In the wireless convergence node relay circuit provided by the present application, the data of the environmental sensor can be obtained by wireless communication, and the data can be forwarded to the host computer by wireless communication. At the same time, since the alarm unit and the satellite positioning unit are set up, when the repeater is stolen, the alarm unit can effectively alarm the repeater. At the same time, even if the repeater has been stolen, the satellite positioning unit can still be used to locate the repeater in real time, which is convenient for retrieval of the repeater.

[0026] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1A module diagram of a wireless aggregation node relay circuit provided in an embodiment of the present application.

[0029] Figure 2 A circuit diagram of an alarm unit provided in an embodiment of the present application.

[0030] Figure 3 A circuit diagram of a reset unit provided in an embodiment of the present application.

[0031] In the figure: 100-wireless aggregation node relay circuit; 110-processor; 120-first communication unit; 130-second communication unit; 140-displacement sensor; 150-alarm unit; 151-alarm; 152-first switch; 153-second switch; 160-satellite positioning unit; 170-reset unit; 171-reset button; 172-capacitor component. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0034] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0036] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0037] As described in the background technology, currently, for the collection of downhole cable data, it is necessary to deploy various types of sensors. For example, based on the complex environment of downhole cables, gas sensors can be deployed to monitor the content of combustible gases such as carbon monoxide, methane, and hydrogen sulfide; or liquid level sensors can be deployed to collect real-time data on the downhole liquid level; or temperature sensors can be deployed to collect the surface temperature of the cable; manhole cover alarm sensors may also be set up, which will not be elaborated here. In order to transmit the monitoring signals of different types of sensors back to the host computer, repeaters need to be deployed throughout the system, but because repeaters are generally deployed on the ground, there is a risk of the repeaters being stolen.

[0038] In view of this, in order to achieve effective anti-theft of the repeater, the present application provides a wireless aggregation node relay circuit, which achieves the purpose of anti-theft by setting an alarm unit and a satellite positioning unit in the wireless aggregation node relay circuit.

[0039] The following is an exemplary description of the wireless aggregation node relay circuit provided in this application:

[0040] As an alternative implementation, see Figure 1 The wireless aggregation node relay circuit 100 includes a processor 110, a first communication unit 120, a second communication unit 130, a displacement sensor 140, an alarm unit 150 and a satellite positioning unit 160. The processor 110 is electrically connected to the first communication unit 120, the second communication unit 130, the displacement sensor 140, the alarm unit 150 and the satellite positioning unit 160 respectively. The first communication unit 120 is also used for communication connection with the environmental sensor, and the second communication unit 130 is used for communication connection with the host computer; wherein the processor 110 is used to receive the monitoring signal sent by the environmental sensor through the first communication unit 120, and forward the monitoring signal to the host computer through the second communication unit 130; the processor 110 is also used to drive the alarm unit 150 to alarm when receiving the displacement signal sent by the displacement sensor 140, and drive the satellite positioning unit 160 to locate, and send the positioning signal to the host computer.

[0041] It can be understood that since the alarm unit 150 and the displacement sensor 140 are provided in the wireless aggregation node relay circuit 100 provided by the present application, once the repeater is stolen and the repeater is displaced, the alarm unit 150 will start to work and serve as a warning. In addition, by providing a satellite positioning unit 160 in the wireless aggregation node relay circuit 100, even if the repeater has been stolen, it can still be located in real time through the satellite positioning unit 160, and the positioning signal can be fed back to the host computer, which is convenient for the subsequent recovery of the repeater and realizes effective anti-theft.

[0042] It should be noted that in actual working conditions, the wireless aggregation node relay circuit 100 needs to communicate with different types of sensors. For example, environmental sensors may include water level temperature, gas and other sensors, thereby realizing data collection of water level, temperature, carbon monoxide, methane, hydrogen sulfide gas and the like; therefore, the first communication unit 120 can integrate multiple existing common wireless communication mechanisms, make full use of the advantages of each wireless communication technology, and realize corresponding needs.

[0043] For example, the first communication unit 120 may include RFID (Radio Frequency Identification) communication and BLE (Bluetooth Low Energy) communication units, and of course, may also include NFC (Near Field Communication) modules, etc.

[0044] That is, in this application, the multifunctional MEMS sensor is the data acquisition source, and the wireless acquisition of the repeater is realized by combining the RFID wireless radio frequency technology. In addition, the repeater integrates BLE and NFC wireless near-field communication technologies to achieve more accurate data collection. It can be understood that in this application, the repeater can be used as a wireless aggregation node, and the data collected by different types of sensors are sent to the repeater wirelessly, and the data is forwarded to the host computer through the repeater.

[0045] For the processor 110, it needs to forward the data collected by the environmental sensor to the host computer. Since it is inconvenient to take electricity in the outdoor environment, the battery life is the key parameter of the repeater. In view of this, the repeater provided in this application needs to have the advantage of low power consumption. On this basis, the processor 110 provided in this application adopts the OSAL operating system, which has low power consumption and multi-tasking processing capabilities, taking into account the balance of performance and power consumption. In combination with the processor 110, it is necessary to have a certain processing capability for the data collected by the environmental sensor. Therefore, in the selection of the processor 110, the present application can select the STM32 series ARM microcontroller, specifically, the STM32F series microcontroller can be selected, which is not limited here.

[0046] At the same time, the second communication unit 130 is used to realize the communication between the processor 110 and the host computer. In order to achieve the requirement of low power consumption, the second communication unit 130 provided in this application includes a 4G communication unit, and of course it can also be a communication unit such as CAT1.

[0047] In addition, the processor 110 can also integrate the background management system, etc., to achieve functions such as data management and software upgrade. Therefore, the repeater provided in this application integrates a variety of existing general wireless communication mechanisms, making full use of the advantages of each wireless communication technology to achieve corresponding needs. The multifunctional MEMS sensor is the data acquisition source, and the wireless acquisition of repeater data is realized in combination with RFID wireless radio frequency technology. The repeater integrates BLE, NFC wireless near-field communication and 4G / CAT1 low-power wide area network communication technology, and realizes the operation parameter configuration and identity recognition of the repeater through WeChat applet, APP and background management system. At the same time, the repeater supports near-field and remote dual-channel OTA upgrade technology, and realizes wireless control and maintenance of repeater equipment in multiple dimensions. Low-power 4G / CAT1 wide area network communication technology makes full use of the coverage of the existing 4G network, greatly reduces network power consumption and meets the system's requirements for reducing data delay. The processor 110 of the repeater adopts the OSAL operating system, which has low power consumption and multi-tasking processing capabilities, and takes into account the balance of performance and power consumption.

[0048] For anti-theft settings, the satellite positioning unit 160 can adopt the Beidou positioning unit. Beidou positioning can realize accurate reporting of the equipment installation position. With the help of the built-in displacement sensor 140 of the repeater, once the repeater has illegal displacement, the alarm unit 150 will be used to alarm, and at the same time, Beidou positioning will be actively performed in real time.

[0049] It should be noted that if the repeater is displaced, it may be due to theft or maintenance by staff. Therefore, in order to avoid false alarms, please refer to Figure 2 The alarm unit 150 provided in the present application includes an alarm 151, a first switch 152 and a second switch 153. The first switch 152 is electrically connected to the alarm 151, the driving power supply VCC and the processor 110 respectively, and the second switch 153 is also electrically connected to the alarm 151, the driving power supply VCC and the processor 110 respectively, and the second switch 153 is also grounded; wherein, the processor 110 is used to control the first switch 152 to operate when receiving a displacement signal sent by the displacement sensor 140, so as to drive the alarm unit 150 to alarm; the processor 110 is also used to control the second switch 153 to operate when receiving a stop alarm signal, so as to drive the alarm unit 150 to stop the alarm.

[0050] By setting the first switch 152 and the second switch 153, it is ensured that the alarm 151 will be driven to work only when the first switch 152 and the second switch 153 are turned on at the same time. Therefore, if the displacement signal of the displacement sensor 140 is not received, or the stop alarm signal is received, the alarm 151 will not alarm, thereby avoiding false alarms.

[0051] As a way to implement this, continue with the parameter Figure 2 , the first switch 152 is a normally open switch, and the second switch 153 is a normally closed switch. Specifically, the first switch 152 includes a normally open relay composed of a first coil L1 and a normally open contact K1, and the second switch 153 includes a normally closed relay composed of a second coil L2 and a normally closed contact K2. One end of the first coil L1 and the second coil L2 is connected to a driving power supply VCC, and the other end of the first coil L1 and the second coil L2 is electrically connected to the processor 110. One end of the normally open contact K1, the alarm unit 150, and the normally closed contact K2 are connected in series in sequence, and the other end is connected to the driving power supply VCC, and the other end is grounded.

[0052] It should be noted that the power supplies connected to the first coil L1, the second coil L2 and the normally open contact K1 may be consistent or inconsistent, and can be set according to requirements in practical applications. For example, the power supply voltage connected to the normally open contact K1 may be greater than the power supply voltage connected to the first coil L1 and the second coil L2, thereby ensuring the driving of the alarm 151 without damaging the processor 110.

[0053] Therefore, the working principle of the alarm unit 150 provided in this application is:

[0054] When the processor 110 receives the displacement signal from the displacement sensor 140, the processor 110 will pull down the level of the pin CTRL1. In one implementation, the processor 110 has a built-in MOS tube, and the pin CTRL1 is grounded through the built-in MOS tube. When the level of the pin CTRL1 needs to be pulled down, it is only necessary to control the built-in MOS tube to be turned on. After the level of the pin CTRL1 is pulled down, current flows through the first coil L1 and generates a magnetic field. Under the action of the magnetic force, the normally open contact K1 is closed. If the first switch 152 is also in a closed state at this time, the alarm 151 works and alarms.

[0055] If the staff is performing maintenance instead of theft at this time, the staff can send a stop alarm signal to the processor 110. For example, a stop alarm button can be set, and when the button is pressed, the processor 110 can receive a corresponding signal; or, a signal can be sent to the processor 110 by software, such as sending a corresponding signal to the processor 110 through an APP. Once the processor 110 receives the stop alarm signal, the level of the pin CTRL2 is pulled down. Similar to the working principle of the pin CTRL1, the processor 110 can also have a built-in MOS tube, and the pin CTRL2 is grounded through the built-in MOS tube. When the built-in MOS tube is turned on, the pin CTRL2 is grounded, and the level of the pin CTRL2 is pulled down. At this time, current flows through the second coil L2, and a magnetic field is generated, and the normally closed contact K2 is disconnected under the action of the magnetic force. Therefore, once the processor 110 receives the stop alarm signal, the alarm 151 will not work.

[0056] It can be seen that, through the circuit of the alarm unit 150 in the present application, it can be ensured that the alarm 151 will alarm only when the displacement sensor 140 detects the displacement signal and the processor 110 does not receive the stop alarm signal, thereby effectively avoiding the situation of false alarm. Of course, in actual application, when the staff needs to inspect, they can first send a stop alarm signal to the processor 110 to disconnect the second switch 153. At this time, when the staff moves the repeater, the alarm 151 will never work.

[0057] In the present application, the alarm 151 may include a buzzer and a photoelectric alarm 151. When the buzzer is working, a sharp sound is emitted; when the photoelectric alarm 151 is working, a continuously flashing light is emitted. Generally speaking, the alarm 151 can be provided with a buzzer and a photoelectric alarm 151 at the same time, thereby realizing a double alarm, reminding the surrounding personnel that the theft of the repeater may occur at this time. When the buzzer and the photoelectric alarm 151 are provided at the same time, the buzzer and the photoelectric alarm 151 are connected in parallel.

[0058] Furthermore, after the repeater is repaired, the processor 110 needs to be reset. Based on this, as an implementation, the repeater further includes a reset unit 170, which is electrically connected to the enable terminal of the processor 110 and is used to reset the processor 110.

[0059] Generally speaking, the reset of the processor is generally achieved through the reset button 171. Accordingly, the enable end of the processor is connected to the power supply and the reset button 171 circuit respectively, the power supply provides an enable signal to the enable end, and the reset button 171 circuit is grounded. When the staff presses the reset button 171, the enable port level of the repeater is pulled down once, thereby realizing the reset function of the repeater.

[0060] However, in actual applications, due to aging and other reasons, the reset button may become stuck. That is, under normal circumstances, when the user presses the reset button, the reset button will pop up, so that each time the staff presses the reset button, the reset button circuit is turned on; when the reset button is not pressed, the reset button circuit is disconnected. However, once the reset button has a sticking fault, the entire reset button circuit is always in a closed state, causing the repeater to malfunction.

[0061] In order to solve the above problems, the reset unit 170 provided in the present application includes a switch tube Q1, a capacitor component 172 and a reset button 171. The first end of the capacitor component 172 is electrically connected to the reset button 171, the second end of the capacitor component 172 is electrically connected to the control end of the switch tube Q1, the switch tube Q1 is also electrically connected to the enable end of the processor 110, and the enable end of the processor 110 and the reset button 171 are also electrically connected to the driving power supply VCC; wherein, when the capacitor component 172 is in a charging state, the switch tube Q1 is turned on; when the capacitor component 172 is in a charging complete state, the switch tube Q1 is turned off.

[0062] It can be understood that since the switch tube is grounded, when the switch tube is turned on, the enable end of the processor 110 will be pulled down to a low level, and when the switch tube is turned off, the enable end of the processor 110 will be pulled up by the power supply. During the process of capacitor charging and charging completion, the processor 110 can be reset.

[0063] Furthermore, due to the characteristics of the capacitor component 172 that it blocks direct current and passes alternating current, when the reset button 171 is turned on, the capacitor component 172 is charged first, and the charging process is equivalent to a wire. When the charging is completed, the capacitor component 172 is equivalent to a circuit break. Therefore, even if the reset button 171 has a fault such as adhesion, when the reset button 171 is pressed, due to the characteristics of the capacitor component 172, it is possible to ensure that at least one pulse is generated to the enable end of the processor 110, so that the processor 110 is reset at least once, instead of being in a dead state, and the circuit stability is stronger.

[0064] In one implementation, the switch tube Q1 may be a triode, the control end of the switch tube Q1 is electrically connected to the second end of the capacitor component 172, the first end of the switch tube Q1 is electrically connected to the enable end of the processor 110, and the second end of the switch tube Q1 is grounded. Of course, the switch tube may also be other devices, such as a MOS tube, an IGBT tube, or a HEMT tube.

[0065] In addition, as an implementation method, the present application can adjust the capacitance of the capacitor and then set the level width for a certain time to ensure that the switch tube Q1 can be turned on when the capacitor component 172 is charged.

[0066] On this basis, the capacitance of the capacitor component 172 provided in the present application is relatively high. In one implementation, the capacitor component 172 may be a capacitor with a large capacitance, or the capacitor component 172 may also include a plurality of first capacitors C1 connected in parallel, such as Figure 3 The middle capacitor component 172 includes two parallel capacitors, and the capacitance value of the capacitor is selected to be 10uF. Of course, a larger number of parallel first capacitors C1 can be selected according to actual needs, for example, 3 or 4 first capacitors C1 can be selected in parallel to form the capacitor component 172.

[0067] Among them, the reset button 171 can be an ordinary physical button, such as a spring button, a toggle button, etc. When the reset button 171 is controlled to be turned on, the power supply charges the capacitor component 172. During the charging process, the capacitor component 172 is equivalent to a wire, so that the base of the switch tube Q1 is at a high level, the transistor is turned on, the enable end of the processor 110 is grounded, and the level is pulled down. When the capacitor is fully charged, due to the principle that the capacitor blocks direct current and passes alternating current, the capacitor is equivalent to an open circuit after charging. At this time, the transistor is turned off, and the enable end of the processor 110 is pulled high by the power supply, thereby achieving reset.

[0068] On this basis, even if the reset button 171 has a sticking failure, when in the on state, the capacitor component 172 will reset the processor due to the charging state switching to the charging completion state, thereby ensuring the normal operation of the circuit.

[0069] It should be noted that the time for charging the capacitor is generally short, for example, the time for charging the capacitor is 10us, so the reset of the processor 110 can be completed quickly. In addition, the conduction requirement pulse width of the transistor needs to be smaller than the pulse width generated when the capacitor is charged, that is, the time for charging the capacitor. For example, if the conduction requirement pulse width of the transistor is 5us, and the time for charging the capacitor is 10us, the transistor can be turned on normally.

[0070] In addition, in order to ensure that the capacitor can be quickly discharged after being charged, the key reset circuit 100 provided in the present application is also provided with a discharge circuit. As an implementation, the key reset circuit 100 also includes a first resistor R1, one end of the first resistor R1 is electrically connected to the second end of the capacitor component 172, and the other end of the first resistor R1 is grounded.

[0071] By setting the first resistor R1, when the reset button 171 is turned on and the capacitor is charged, when the reset button 171 is turned off again, the electricity stored in the capacitor can be quickly released through the first resistor R1. Figure 3 It can be known that the first resistor R1 is also connected to the gate of the switch tube Q1 , so the first resistor R1 can also play the effect of releasing the gate capacitance of the switch tube Q1 .

[0072] In one implementation, the key reset circuit 100 further includes a second resistor R2, one end of the second resistor R2 is electrically connected to the first end of the capacitor component 172, and the other end of the first resistor R1 is grounded. The discharge circuit formed by the first resistor R1 and the second resistor R2 allows the power of the capacitor component 172 to be quickly discharged.

[0073] Moreover, in order to ensure the stability of the driving signal and enable the transistor to be stably turned on, the key reset circuit 100 further includes a second capacitor C2 and a third capacitor C3, one end of the second capacitor C2 is electrically connected to the reset button 171, one end of the third capacitor C3 is electrically connected to the switch tube, and the other ends of the second capacitor C2 and the third capacitor C3 are grounded. By providing the second capacitor C2 and the third capacitor C3, the signal on both sides of the capacitor component 172 can be filtered.

[0074] In addition, in order to protect the switch tube Q1, the key reset circuit 100 further includes a third resistor R3, one end of which is electrically connected to the capacitor component 172, and the other end of which is electrically connected to the switch tube. The third resistor R3 can limit the gate current of the transistor.

[0075] Therefore, the working principle of the reset unit provided in this application is:

[0076] If the reset button 171 is closed, the driving power supply VCC charges the capacitor component 172, and the base of the transistor inputs the driving current to drive the transistor to turn on. When the transistor is turned on, the enable port EN level of the current limiting chip is pulled down; and when the capacitor is charged (the reset button 171 is still in the closed state at this time), the capacitor component 172 is equivalent to an open circuit, the transistor is disconnected, and the enable port EN level of the processor is pulled up again by the power signal of the driving power supply VCC to achieve reset. If it is necessary to reset again, just disconnect the reset button 171 and then close it again. Therefore, even if the reset button 171 is stuck and other faults occur, the processor can be reset at least once, and the processor can also operate normally, and the stability of the wireless aggregation node relay circuit is stronger.

[0077] Based on the above implementation, this paper again refers to Figure 1 The embodiment of the present application also provides a data acquisition system, which includes an environmental sensor, a host computer and the above-mentioned wireless aggregation node relay circuit 100. The wireless aggregation node relay circuit 100 is communicatively connected to the environmental sensor through a first communication unit 120, and the wireless aggregation node relay circuit 100 is also communicatively connected to the host computer through a second communication unit 130.

[0078] In summary, the present application provides a wireless convergence node relay circuit and data acquisition system, the wireless convergence node relay circuit includes a processor, a first communication unit, a second communication unit, a displacement sensor, an alarm unit and a satellite positioning unit, the processor is electrically connected to the first communication unit, the second communication unit, the displacement sensor, the alarm unit and the satellite positioning unit respectively, the first communication unit is also used to communicate with the environmental sensor, and the second communication unit is used to communicate with the host computer; wherein the processor is used to receive the monitoring signal sent by the environmental sensor through the first communication unit, and forward the monitoring signal to the host computer through the second communication unit; the processor is also used to drive the alarm unit to alarm when receiving the displacement signal sent by the displacement sensor, and drive the satellite positioning unit to locate, and send the positioning signal to the host computer. Since the alarm unit and the satellite positioning unit are set in the wireless convergence node relay circuit provided by the present application, when the behavior of stealing the repeater occurs, the repeater can be effectively alarmed through the alarm unit, and even if the repeater has been stolen, the real-time positioning of the repeater can still be achieved through the satellite positioning unit, which is convenient for the retrieval of the repeater.

[0079] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0080] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A wireless aggregation node relay circuit, characterized in that: The wireless aggregation node relay circuit includes a processor, a first communication unit, a second communication unit, a displacement sensor, an alarm unit and a satellite positioning unit. The processor is electrically connected to the first communication unit, the second communication unit, the displacement sensor, the alarm unit and the satellite positioning unit respectively. The first communication unit is also used for communication connection with an environmental sensor, and the second communication unit is used for communication connection with a host computer; wherein, The processor is used to receive the monitoring signal sent by the environmental sensor through the first communication unit, and forward the monitoring signal to the host computer through the second communication unit; The processor is also used to drive the alarm unit to sound an alarm when receiving the displacement signal sent by the displacement sensor, and drive the satellite positioning unit to perform positioning, and send the positioning signal to the host computer.

2. The wireless aggregation node relay circuit according to claim 1, characterized in that: The alarm unit includes an alarm, a first switch and a second switch, wherein the first switch is electrically connected to the alarm, the driving power supply and the processor respectively, and the second switch is also electrically connected to the alarm, the driving power supply and the processor respectively, and the second switch is also grounded; wherein, The processor is used for controlling the first switch to drive the alarm unit to alarm when receiving the displacement signal sent by the displacement sensor; The processor is further configured to control the second switch to act upon receiving a stop alarm signal, so as to drive the alarm unit to stop alarming.

3. The wireless aggregation node relay circuit according to claim 2, characterized in that: The first switch includes a relay consisting of a first coil and a normally open contact, the second switch includes a relay consisting of a second coil and a normally closed contact, one end of the first coil and the second coil is connected to a driving power supply, the other end of the first coil and the second coil is electrically connected to the processor, one end of the normally open contact, the alarm unit and the normally closed contact are connected in series in sequence, and the other end is connected to the driving power supply.

4. The wireless aggregation node relay circuit according to claim 1, characterized in that: The alarm unit includes a buzzer and a photoelectric alarm.

5. The wireless aggregation node relay circuit according to claim 1, characterized in that: The wireless aggregation node relay circuit further includes a reset unit, which is electrically connected to the enable terminal of the processor and is used to reset the processor.

6. The wireless aggregation node relay circuit according to claim 5, characterized in that: The reset unit includes a switch tube, a capacitor component and a reset button, wherein the first end of the capacitor component is electrically connected to the reset button, the second end of the capacitor component is electrically connected to the control end of the switch tube, the switch tube is also electrically connected to the enable end of the processor, and the enable end of the processor and the reset button are also used to be electrically connected to a driving power supply; wherein, When the capacitor component is in a charging state, the switch tube is turned on; When the capacitor component is in a charging completion state, the switch tube is turned off.

7. The wireless aggregation node relay circuit according to claim 6, characterized in that: The reset unit further includes a first resistor, one end of which is electrically connected to the second end of the capacitor component, and the other end of the first resistor is grounded.

8. The wireless aggregation node relay circuit according to claim 6, characterized in that: The reset unit further includes a second resistor, one end of the second resistor is electrically connected to the first end of the capacitor component, and the other end of the second resistor is grounded.

9. The wireless aggregation node relay circuit according to claim 1, characterized in that: The first communication unit includes an RFID communication unit and a BLE communication unit, and the second communication unit includes a 4G communication unit.

10. A data acquisition system, characterized in that: The data acquisition system includes an environmental sensor, a host computer, and a wireless aggregation node relay circuit as described in any one of claims 1 to 9, wherein the wireless aggregation node relay circuit is communicatively connected to the environmental sensor via the first communication unit, and the wireless aggregation node relay circuit is also communicatively connected to the host computer via the second communication unit.

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