Safe operation device applied to Beidou navigation

Abstract

The utility model provides a safe operation device applied to Beidou navigation, and effectively solves the problems that an existing Beidou positioning module is influenced by an overload state of a power supply module during operation, the possibility of safe operation is reduced, and the accuracy of Beidou navigation is also reduced. The safety operation device further comprises a safety monitoring module, and the safety monitoring module is used for obtaining an overload working signal according to the output voltage of the power supply module during power supply, detecting the temperature of the power supply module after the power supply module is in an overload state and outputting an alarm signal to the communication module according to an overload existence signal obtained based on the overload state. The safety monitoring module comprises a primary monitoring circuit and a secondary monitoring circuit; one end of the primary monitoring circuit is connected with one end of the secondary detection circuit, and the other end of the secondary detection circuit is connected with the data processing module and the communication module. And the accuracy of Beidou navigation is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of Beidou navigation, in particular to a safe operation device applied to Beidou navigation. Background Art

[0002] Beidou not only achieves the effect of navigation but also the effect of positioning. Navigation can only be achieved based on the positioning position, so the positioning achieved by Beidou is also related to the accuracy of navigation. In order to safely store the relevant information located by Beidou, the Chinese patent with application number 201820777904.9 provides a "Safety Storage Device Based on Beidou Navigation and Positioning System", which realizes that once the positioning information sent by the Beidou positioning module is inconsistent with the set safe use position area, the data processing module sends an early warning message to the user's mobile terminal or PC terminal through the communication module. After receiving the early warning signal, the user's mobile terminal or PC terminal can send a destruction signal to the safe storage device. After receiving the destruction signal, the communication module of the safe storage device transmits the destruction signal to the data processor. The data processor provides an enable signal, and the destruction circuit is started, destroying the storage module and the data processor, and destroying all the data, thereby achieving the effect of data protection.

[0003] However, whether the power module can normally supply power to the communication module, Beidou positioning module, power module and other modules also affects the safe operation of the Beidou positioning module. In actual use, when the power module supplies power to multiple modules for a long time, it is very easy to overload, which reduces the safe power supply of the power supply, making the Beidou positioning module unable to operate normally, reducing safety, and thus unable to guarantee the accuracy of Beidou-based navigation.

[0004] That is, the existing Beidou positioning module is affected by the overload state of the power module during operation, which reduces the possibility of safe operation and also reduces the accuracy of Beidou navigation.

[0005] Therefore, the utility model provides a new solution to solve this problem. Summary of the invention

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a safe operation device for Beidou navigation, which effectively solves the problem that the existing Beidou positioning module is affected by the overload state of the power module during operation, reduces the possibility of safe operation, and also reduces the accuracy of Beidou-based navigation.

[0007] The technical solution is a safe operation device applied to Beidou navigation, comprising a Beidou positioning module, a power module, a data processing module and a communication module, wherein the power module supplies power to the Beidou positioning module, the data processing module and the communication module, and the safe operation device further comprises a safety monitoring module, wherein the safety monitoring module is used to obtain an overload working signal according to the output voltage of the power module when power is supplied, and to detect the temperature of the power module after being in an overload state and the overload existence signal obtained based on the overload state, and output an alarm signal to the communication module;

[0008] The safety monitoring module includes a primary monitoring circuit and a secondary monitoring circuit;

[0009] One end of the primary monitoring circuit is connected to one end of the secondary detection circuit, and the other end of the secondary monitoring circuit is connected to the data processing module and the communication module respectively;

[0010] The overload presence signal includes a first overload presence signal and a second overload presence signal.

[0011] Furthermore, the primary monitoring circuit detects the output voltage of the power module to obtain a voltage signal, obtains an overload working signal based on the voltage signal, and starts the secondary monitoring circuit based on the overload working signal.

[0012] Furthermore, the primary monitoring circuit performs a subtraction operation based on the voltage signal to obtain a change signal, and performs a division operation based on the change signal to obtain an overload working signal.

[0013] Furthermore, the secondary monitoring circuit detects the temperature of the power module after being turned on to obtain a temperature signal, and also receives a data processing module to detect that the power module is in an overload state and outputs a first overload existence signal, and outputs a first abnormal signal and a second overload existence signal based on the temperature signal, and obtains an alarm signal based on the first overload existence signal and the second overload existence signal.

[0014] Furthermore, the secondary monitoring circuit performs a subtraction operation on the temperature signal to obtain a first abnormal signal.

[0015] Furthermore, the secondary monitoring circuit performs an AND operation on the first overload existence signal and the second overload existence signal based on the data processing module to obtain an alarm signal.

[0016] The utility model achieves the following beneficial effects:

[0017] The present application sets a safety monitoring module for the power supply module, and the safety monitoring module is used to obtain an overload working signal according to the output voltage of the power supply module when power is supplied, and detect the temperature of the power supply module after being in an overload state and the overload existence signal obtained based on the overload state, and output an alarm signal to the communication module, thereby realizing the overload detection of the power supply module and outputting an alarm signal, thereby ensuring the safe operation of the Beidou positioning module when the power supply module is overloaded, solving the problem that the existing Beidou positioning module is affected by the overload state of the power supply module during operation, thereby ensuring the normal operation of the Beidou positioning module, and also ensuring the accuracy of Beidou-based navigation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the framework of the utility model.

[0019] Figure 2 It is the principle diagram of the primary monitoring circuit of the utility model.

[0020] Figure 3 It is the principle diagram of the secondary monitoring circuit of the utility model. DETAILED DESCRIPTION

[0021] For the above and other technical contents, features and functions of the present invention, please refer to the following attached Figure 1-3 The detailed description of the embodiments will clearly show that the structural contents mentioned in the following embodiments are all based on the drawings in the specification.

[0022] Various exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

[0023] A safe operation device for Beidou navigation, comprising a Beidou positioning module, a power module, a data processing module and a communication module, wherein the power module supplies power to the Beidou positioning module, the data processing module and the communication module, and the safe operation device further comprises a safety monitoring module, wherein the safety monitoring module is used to obtain an overload working signal according to the output voltage of the power module when power is supplied, and to detect the temperature of the power module after being in an overload state and an overload existence signal obtained based on the overload state, and output an alarm signal to the communication module;

[0024] The safety monitoring module includes a primary monitoring circuit and a secondary monitoring circuit;

[0025] One end of the primary monitoring circuit is connected to one end of the secondary detection circuit, and the other end of the secondary monitoring circuit is connected to the data processing module and the communication module respectively;

[0026] The overload presence signal includes a first overload presence signal and a second overload presence signal.

[0027] The primary monitoring circuit detects the output voltage of the power module based on the voltage sensor U1 to obtain a voltage signal. Based on the voltage sensor U1, a DC voltage sensor similar to the model KCE-VZ01 can be used. The collected voltage signal is transmitted to the operational amplifier U2B through the resistor R4. The operational amplifier U2B subtracts the voltage signal from the rated voltage signal provided by the resistor R10 to obtain a change signal, and transmits the change signal to the divider composed of the multiplier V1 and the operational amplifier U1B for division operation. When the divider diode D5 is turned on, it indicates that the power module is in an overload state at this time, and the diode D5 outputs an overload working signal, and outputs the overload working signal to the secondary monitoring circuit;

[0028] The primary monitoring circuit includes a resistor R4, one end of which is connected to the out pin of the voltage sensor U1, the other end of which is respectively connected to one end of the resistor R2 and the in-phase end of the operational amplifier U2B, the inverting end of the operational amplifier U2B is respectively connected to one end of the resistor R10, one end of the resistor R6, and the 1 pin of the multiplier V1, the output end of the operational amplifier U2B is connected to one end of the resistor R8, the other end of the resistor R8 is respectively connected to one end of the resistor R9 and the inverting end of the operational amplifier U1B, the output end of the operational amplifier U1B is respectively connected to the 2 pin of the multiplier V1 and the positive electrode of the diode D5, the output end of the multiplier V1 is connected to the other end of the resistor R9, the output end of the operational amplifier U1B is connected to one end of the resistor R5, the other end of the resistor R5 is respectively connected to the other end of the resistor R2, the gnd pin of the voltage sensor U1 and the ground, and the vcc pin of the voltage sensor U1 is connected to the other end of the resistor R10 and the positive polarity power supply VCC.

[0029] The secondary monitoring circuit will turn on the thyristor Q1 and the thyristor Q2 respectively through the capacitor C3 based on the overload working signal output by the primary monitoring circuit. The thyristor Q2 will output the first overload existence signal to the data processing module based on the power supply being in an overload state, wherein the data processing module will monitor the power supply module being in an overload state and output the first overload existence signal, the second overload existence signal, the third overload existence signal, etc. The first overload existence signal is output to the AND gate circuit composed of the diode D3, the diode D4, and the resistor R14 through the delay circuit composed of the 2nd and 3rd pins of the switch S1 and the resistor R12 and the capacitor C4. At the same time, the turned-on thyristor Q2 will transmit the temperature signal obtained by the temperature sensor U2 detecting the temperature of the power supply module to the operational amplifier U3B in two ways for subtraction operation, one way is directly transmitted to the in-phase end of the operational amplifier U3B, and the other way is transmitted to the inverting end of the operational amplifier U3B through the resistor R3 and the capacitor C6. The operational amplifier U3B turns on the diode D2 When it is on, it indicates that the temperature of the power module before and after the power module increases greatly due to the overload state. The temperature sensor U2 can be used with an infrared temperature sensor similar to OS136A-1-K. The diode D2 outputs a first abnormal signal. The first abnormal signal turns on the relay K1. The relay K1 disconnects the 2nd and 3rd pins of the switch S1 and connects it to the 1st pin. If the AND gate circuit composed of the diode D3, the diode D4, and the resistor R14 receives the second overload existence signal output by the data processing module based on the power module being in an overload state output by the thyristor Q1, the AND gate circuit performs an AND operation based on the first overload existence signal and the second overload existence signal to obtain an alarm signal. The alarm signal is output to the communication module. The communication module outputs the alarm signal to the user's mobile terminal to remind the power module at this time that it needs to be processed as soon as possible, otherwise the safe operation of the Beidou positioning module cannot be guaranteed.

[0030] The secondary monitoring circuit includes a thyristor Q2, the control electrode of the thyristor Q2 is respectively connected to one end of the capacitor C3, the control electrode of the thyristor Q1, and the negative electrode of the diode D5 in the primary monitoring circuit, the anode of the thyristor Q1 is connected to the data processing module, the cathode of the thyristor Q1 is connected to the 2 pin of the switch S1, the 3 pin of the switch S1 is connected to one end of the resistor R12, the other end of the resistor R12 is respectively connected to the negative electrode of the diode D3 and one end of the capacitor C4, the positive electrode of the diode D3 is respectively connected to one end of the resistor R14, the positive electrode of the diode D1, and the positive electrode of the diode D4, the negative electrode of the diode D1 is connected to the communication module, the other end of the resistor R14 is respectively connected to the vcc pin of the temperature sensor U2, the other end of the resistor R10 in the primary monitoring circuit and connected to the positive polarity power supply VCC, the negative electrode of the diode D4 is connected to the Pin 1 of switch S1 is connected, the out pin of temperature sensor U2 is connected to the anode of thyristor Q2, the cathode of thyristor Q2 is connected to one end of resistor R1 and one end of resistor R3 respectively, the other end of resistor R1 is connected to one end of resistor R7 and the in-phase end of op amp U3B respectively, the inverting end of op amp U3B is connected to the other end of resistor R3, one end of capacitor C6 and one end of resistor R11 respectively, the output end of op amp U3B is connected to the other end of resistor R11 and the positive electrode of diode D2 respectively, the negative electrode of diode D2 is connected to one end of relay K1, the other end of relay K1 is connected to the other end of resistor R7, the other end of capacitor C6, the other end of capacitor C4, the other end of capacitor C3, the gnd pin of temperature sensor U2, the other end of resistor R5 in the primary monitoring circuit and connected to ground.

[0031] For example, in actual use, the voltage signal detected by the voltage sensor U1 of the primary monitoring circuit is 3.9V, and the rated voltage signal is 3V, then the operational amplifier U2B outputs a change signal of 0.9V, then the change signal is output to the operational amplifier U1B, and the divider with the multiplier V1 as the core performs a division operation with the rated voltage signal, then the divider turns on the diode D5, then the secondary monitoring circuit is turned on, and the secondary monitoring circuit transmits the first overload existence signal to the AND gate circuit composed of the diode D3, the diode D4, and the resistor R14 via the switch S1, the resistor R12, and the capacitor C4 with a delay. At this time, the thyristor Q2 also transmits the detected 3.7V temperature signal to the operational amplifier U3B, and the operational amplifier U3B subtracts the 3.7V temperature signal from the delayed 2.7V temperature signal of the resistor R3 and the capacitor C6, and the operational amplifier U3B outputs a first abnormal signal of 1V, and the first abnormal signal turns on the relay K1, and the relay K1 switches the pin of the switch S1, and the thyristor Q2 outputs a second overload existence signal to the AND gate circuit composed of the diode D3, the diode D4, and the resistor R14, and the AND gate circuit outputs an alarm signal to the communication module.

[0032] When the utility model is in use, a safety monitoring module is also provided, and the safety monitoring module includes a primary monitoring circuit and a secondary monitoring circuit. The primary monitoring circuit detects the output voltage of the power module based on the voltage sensor U1 to obtain a voltage signal, and the collected voltage signal is transmitted to the operational amplifier U2B via the resistor R4. The operational amplifier U2B performs a subtraction operation on the voltage signal and the rated voltage signal provided by the resistor R10 to obtain a change signal, and transmits the change signal to the divider composed of the multiplier V1 and the operational amplifier U1B for division operation. When the divider diode D5 is turned on, the diode D5 outputs an overload working signal, and outputs the overload working signal to the secondary monitoring circuit; the secondary monitoring circuit turns on the thyristor Q1 and the thyristor Q2 respectively through the capacitor C3 based on the overload working signal, and the thyristor Q2 outputs the first overload existence signal to the diode via the delay circuit composed of the 2nd and 3rd pins of the switch S1, the resistor R12, and the capacitor C4. In the AND gate circuit composed of the diode D3, the diode D4, and the resistor R14, the thyristor Q2 that is turned on at the same time transmits the temperature signal obtained by the temperature sensor U2 detecting the temperature of the power module to the operational amplifier U3B in two ways for subtraction operation. When the operational amplifier U3B turns on the diode D2, the diode D2 outputs a first abnormal signal. The first abnormal signal turns on the relay K1, and the relay K1 disconnects the 2nd pin and the 3rd pin of the switch S1 and connects it with the 1st pin. If the AND gate circuit composed of the diode D3, the diode D4, and the resistor R14 receives the second overload existence signal output by the data processing module output by the thyristor Q1 at this time, the AND gate circuit performs an AND operation based on the first overload existence signal and the second overload existence signal to obtain an alarm signal, and the alarm signal is output to the communication module. The communication module outputs the alarm signal to the user's mobile terminal, reminding that the power module at this time needs to be processed as soon as possible, otherwise the safe operation of the Beidou positioning module cannot be guaranteed.

[0033] The utility model achieves the following beneficial effects:

[0034] (1) The present application sets a safety monitoring module for the power module, and the safety monitoring module is used to obtain an overload working signal according to the output voltage of the power module when supplying power, and detect the temperature of the power module after being in an overload state and the overload existence signal obtained based on the overload state, and output an alarm signal to the communication module, thereby realizing the overload detection of the power module and outputting an alarm signal, thereby ensuring the safe operation of the Beidou positioning module when the power module is overloaded, solving the problem that the existing Beidou positioning module is affected by the overload state of the power module during operation, thereby ensuring the normal operation of the Beidou positioning module and also ensuring the accuracy of Beidou-based navigation;

[0035] (2) The primary monitoring circuit included in the safety monitoring module described in the present application uses the op amp U2B, the op amp U1B, and the multiplier V1 to determine that the voltage output by the power module is greater than the rated voltage and is in an overload state, and outputs an overload working signal to the secondary monitoring circuit, thereby achieving the effect of determining that the power module is overloaded, and preliminarily ensuring the safe operation of the Beidou positioning module;

[0036] (3) The safety monitoring module described in the present application includes a secondary monitoring circuit. After the overload working signal is turned on, it is determined based on the operational amplifier U3B that the temperature of the power module rises significantly due to overload, and the safety of the power module cannot be guaranteed at this time. Moreover, the power module is always in an overload state. Then, the AND gate circuit composed of the diode D3, the diode D4 and the resistor R14 outputs an alarm signal, thereby reminding the user to immediately process the power module, thereby ensuring the safety of the power module and also ensuring the safe operation of the Beidou positioning module.

Claims

1. A safe operation device for Beidou navigation, comprising a Beidou positioning module, a power module, a data processing module and a communication module, wherein the power module supplies power to the Beidou positioning module, the data processing module and the communication module, and wherein: The safety operation device further includes a safety monitoring module, which is used to obtain an overload working signal according to the output voltage of the power module when supplying power, and detect the temperature of the power module after it is in an overload state and the overload existence signal obtained based on the overload state, and output an alarm signal to the communication module; The safety monitoring module includes a primary monitoring circuit and a secondary monitoring circuit; One end of the primary monitoring circuit is connected to one end of the secondary detection circuit, and the other end of the secondary monitoring circuit is connected to the data processing module and the communication module respectively; The overload presence signal includes a first overload presence signal and a second overload presence signal.

2. The safe operation device for Beidou navigation according to claim 1, characterized in that: The primary monitoring circuit detects the output voltage of the power module to obtain a voltage signal, obtains an overload working signal based on the voltage signal, and starts the secondary monitoring circuit based on the overload working signal.

3. The safe operation device for Beidou navigation according to claim 1, characterized in that: The primary monitoring circuit performs a subtraction operation based on the voltage signal to obtain a change signal, and performs a division operation based on the change signal to obtain an overload working signal.

4. The safe operation device for Beidou navigation according to claim 1, characterized in that: After being turned on, the secondary monitoring circuit detects the temperature of the power module to obtain a temperature signal, and also receives a data processing module to detect that the power module is in an overload state and outputs a first overload existence signal, and outputs a first abnormal signal and a second overload existence signal based on the temperature signal, and obtains an alarm signal based on the first overload existence signal and the second overload existence signal.

5. The safe operation device for Beidou navigation according to claim 4, characterized in that: The secondary monitoring circuit performs a subtraction operation on the temperature signal to obtain a first abnormal signal.

6. The safe operation device for Beidou navigation according to claim 4, characterized in that: The secondary monitoring circuit performs an AND operation on the first overload existence signal and the second overload existence signal based on the data processing module to obtain an alarm signal.

Images