CN111693891A - Terminal with communication module and remote diagnosis system - Google Patents
Terminal with communication module and remote diagnosis system Download PDFInfo
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- CN111693891A CN111693891A CN202010376823.XA CN202010376823A CN111693891A CN 111693891 A CN111693891 A CN 111693891A CN 202010376823 A CN202010376823 A CN 202010376823A CN 111693891 A CN111693891 A CN 111693891A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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Abstract
The invention discloses a terminal with a communication module and a remote diagnosis system, wherein the terminal comprises the communication module, a diagnosis circuit and a control unit; the diagnosis circuit comprises a first switch, a second switch, a detection resistor and a module power supply output end; the first switch and the second switch respectively comprise a first end, a second end and a control end; the input end of the power supply is electrically connected with the first end of the first switch and the first end of the second switch respectively; the second end of the second switch is electrically connected with one end of the detection resistor; the second end of the first switch and the other end of the detection resistor are electrically connected with the output end of the module power supply; the module power supply output end is used for supplying power to the communication module; the control unit is used for collecting voltage data at two ends of the detection resistor when the second switch is switched on and obtaining diagnosis data according to the voltage data; the diagnostic data is used for judging whether the terminal has abnormal electric leakage or not. The invention can diagnose the health condition of the communication modules dispersed in the terminal equipment of the client, and ensure that the communication function is not influenced.
Description
Technical Field
The invention relates to the field of Internet of things equipment, in particular to a terminal with a communication module and a remote diagnosis system.
Background
The internet of things equipment runs outdoors for a long time, and can meet various severe application environments such as severe summer and cold, extremely high humidity, thunder, static electricity, unstable voltage and the like, and the loss of hundreds of billions of dollars can be caused to global electronic equipment every year only by one threat of static electricity.
In some key application occasions, such as the financial field, the reliability requirement on the operation of communication modules dispersed in terminal equipment (such as an internet of things terminal) of a client is extremely high, and the absolute smoothness of the communication of each terminal equipment needs to be ensured. In the prior art, the signs of damage to hardware of a communication module in terminal equipment cannot be found in time, which finally causes the communication function of the terminal equipment to be abnormal, and cannot meet the requirements of some application occasions on the reliability of the communication module.
Disclosure of Invention
The invention aims to overcome the defects that the prior art can not find the signs of damage of hardware of a communication module in terminal equipment in time, finally causes the abnormal occurrence of the communication function of the terminal equipment and can not meet the requirements of application occasions on the reliability of the communication module.
The invention solves the technical problems through the following technical scheme:
the invention provides a terminal with a communication module, which comprises a power supply input end and the communication module, and also comprises a diagnosis circuit and a control unit; the control unit is in communication connection with the communication module;
the diagnosis circuit comprises a first switch, a second switch, a detection resistor and a module power supply output end; the first switch and the second switch respectively comprise a first end, a second end and a control end;
the input end of the power supply is electrically connected with the first end of the first switch and the first end of the second switch respectively;
the second end of the second switch is electrically connected with one end of the detection resistor;
the second end of the first switch and the other end of the detection resistor are electrically connected with the output end of the module power supply;
the module power supply output end is used for supplying power to the communication module;
the control unit is used for outputting a first switch signal to the control end of the first switch so as to control the on and off of the first switch;
the control unit is further used for outputting a second switch signal to the control end of the second switch so as to control the second switch to be switched on and off;
the control unit is also used for collecting voltage data at two ends of the detection resistor when the second switch is switched on and obtaining diagnosis data according to the voltage data;
the diagnostic data is used for judging whether the terminal has abnormal electric leakage or not.
In the scheme, the diagnosis circuit is composed of two paths of switch devices which are respectively a first switch and a second switch, a control unit generates control signals of the two switches to be used for controlling the connection and disconnection of the corresponding switches, and when the first switch is connected and the second switch is disconnected, power input by the input end of the power supply is output to the output end of the power supply of the module through the first switch to supply power for the communication module; when the second switch is switched on and the first switch is switched off, the power input by the input end of the power supply sequentially passes through the second switch and the detection resistor and then is output to the output end of the module power supply to supply power to the communication module, at the moment, the control unit acquires voltage data at two ends of the detection resistor and obtains diagnosis data according to the voltage data, and whether abnormal electric leakage exists in the terminal can be further judged according to the diagnosis data.
This scheme is through the setting of the diagnostic circuit including two way switching device, can carry out the health condition diagnosis to the communication module in the terminal equipment, and in time the damage sign appears in the hardware of discovery module, in case there is the performance of hardware damage, can further take measures, if in time carry out the equipment maintenance and change, and then guarantee that the communication function is not influenced.
Preferably, the first switch is an NMOS (N-type metal-oxide-semiconductor) transistor, the second switch is a PMOS (P-type metal-oxide-semiconductor) transistor, and the terminal further includes a first resistor and a second resistor; the first resistor is connected between the first end and the control end of the first switch in series; the second resistor is connected between the first end and the control end of the second switch in series;
the grid electrode of the NMOS tube is the control end of the first switch, the drain electrode of the NMOS tube is the first end of the first switch, and the source electrode of the NMOS tube is the second end of the first switch;
the grid electrode of the PMOS tube is the control end of the second switch, the source electrode of the PMOS tube is the first end of the second switch, and the drain electrode of the PMOS tube is the second end of the second switch.
Preferably, the resistance value of the detection resistor is less than 0.05 ohm, and the precision of the detection resistor is greater than or equal to 1%.
Preferably, the control unit is further configured to calculate a current value on the detection resistor according to the voltage data, and use the current value and the working mode information of the terminal as the diagnostic data;
the communication module is used for sending the diagnosis data to a remote monitoring end;
the remote monitoring terminal judges whether the terminal has abnormal electric leakage or not based on the diagnosis data
In the scheme, the high-precision and high-power current detection resistor is used for calculating the working current value of the terminal in each working mode, the specific resistance value is less than 0.05 ohm, the precision is more than or equal to 1%, the detection resistor can identify the damage of hardware of the module, and the health condition diagnosis of the communication module in the terminal equipment is better realized.
Preferably, the control unit is further configured to receive a control instruction sent by the remote monitoring terminal through the communication module, and generate the first switching signal and the second switching signal according to the control instruction.
Preferably, the terminal is an internet of things terminal, and the communication module is a communication module.
The second aspect of the present invention provides a remote diagnosis system, comprising a remote monitoring terminal and the terminal with the communication module as described in the first aspect; the remote monitoring terminal is in communication connection with the communication module of the terminal through a wireless network;
the remote monitoring terminal is used for sending a control instruction to a communication module of the terminal, and the communication module is used for transmitting the control instruction to the control unit; the control instruction comprises a diagnosis instruction and a working instruction;
when the control instruction is the diagnosis instruction, the control unit is used for outputting a first switch signal to the control end of the first switch to control the first switch to be switched off, and is also used for outputting a second switch signal to the control end of the second switch to control the second switch to be switched on; when the control instruction is the working instruction, the control unit is used for outputting a first switch signal to the control end of the first switch to control the first switch to be switched on, and is also used for outputting a second switch signal to the control end of the second switch to control the second switch to be switched off;
the communication module is also used for sending the diagnosis data to the remote monitoring terminal;
and the remote monitoring terminal is used for judging whether the terminal has abnormal electric leakage or not based on the diagnosis data.
In the scheme, the terminal is in a normal working mode by default, the first switch is switched on, the second switch is switched off, and the working instruction can be sent to the communication module of the terminal by the remote monitoring terminal. When the health condition of a communication module in terminal equipment needs to be diagnosed, a remote monitoring end sends a diagnosis instruction to the communication module of a terminal, a control unit outputs a corresponding first switch signal and a corresponding second switch signal after receiving the diagnosis instruction so as to enable a first switch to be switched off and a second switch to be switched on, the control unit acquires voltage data at two ends of a detection resistor and obtains diagnosis data according to the voltage data, the communication module transmits the diagnosis data to the remote monitoring end, and the remote monitoring end judges whether abnormal electric leakage exists in the terminal according to the diagnosis data.
Preferably, the remote monitoring terminal is further configured to send a working mode instruction to a communication module of the terminal, and the communication module is further configured to transmit the working mode instruction to the control unit;
the control unit is also used for setting the terminal to be in a corresponding working mode according to the working mode instruction;
and the remote monitoring end is also used for comparing the diagnostic data with the standard data corresponding to the working mode and judging whether the terminal has abnormal electric leakage according to the comparison result.
According to the scheme, refined diagnosis can be realized for the terminal comprising multiple working modes, the working mode command is sent by the remote monitoring terminal to realize the setting of the working mode of the terminal, the terminal in different working modes is subjected to diagnosis data acquisition, and the remote monitoring terminal compares the received diagnosis data with the standard data corresponding to the working mode corresponding to the diagnosis data so as to judge whether the terminal has abnormal electric leakage when the corresponding working mode works.
Preferably, the control unit is further configured to calculate a current value on the detection resistor according to the voltage data, and use the current value and a working mode of the terminal as the diagnostic data.
In this embodiment, the diagnostic data is specifically defined as the current value obtained by dividing the voltage data by the resistance value of the detection resistor and the operation mode of the terminal. According to the scheme, the remote monitoring terminal is realized by comparing the difference value of the current value and the standard current value when judging whether the terminal leaks electricity abnormally. The standard current value can be prestored in a database, and different working modes correspond to different standard current values. And the remote monitoring terminal searches a corresponding standard current value in the database according to the working mode corresponding to the received current value so as to complete subsequent comparison.
Preferably, the step of determining whether the terminal has abnormal leakage according to the comparison result is: and when the current value exceeds 10% of the standard current value corresponding to the working mode, the terminal has abnormal electric leakage.
In the scheme, the remote monitoring end compares the diagnostic data with the standard current value in the database, and if the current consumption value is obviously larger, the terminal is judged to have certain abnormal electric leakage. A significant deviation is 10% above the standard current value.
The positive progress effects of the invention are as follows: the terminal with the communication module and the remote diagnosis system provided by the invention can diagnose the health condition of the communication module dispersed in the terminal equipment of the client, find the damage sign of the hardware of the module in time, and further take measures once the hardware is damaged, such as equipment maintenance and replacement in time, thereby ensuring that the communication function is not influenced.
Drawings
Fig. 1 is a schematic structural diagram of a terminal with a communication module according to embodiment 1 of the present invention.
Fig. 2 is a circuit diagram of a diagnostic circuit of a terminal with a communication module according to embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of a remote diagnosis system according to embodiment 2 of the present invention.
Fig. 4 is an operation timing chart of the diagnostic circuit of the remote diagnostic system according to embodiment 2 of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, the present embodiment provides a terminal 1 with a communication module, which includes a communication module 11, a diagnostic circuit 13 and a control unit 12, wherein the diagnostic circuit 13 is shown in fig. 2. The control unit 12 is communicatively connected to the communication module 11. The terminal 1 further comprises a supply input VCC. In this embodiment, the terminal 1 is an internet of things terminal, and the communication module 11 is a communication module of the internet of things terminal.
In this embodiment, the diagnostic circuit 13 includes a first switch a, a second switch B, a first resistor R1, a second resistor R2, a third resistor R3, a detection resistor R4, a module power supply output VBAT, a first voltage detection terminal ADC1, a second voltage detection terminal ADC2, a first control terminal diagnosti _ CTRL _ a, and a second control terminal diagnosti _ CTRL _ B. The first switch A and the second switch B respectively comprise a first end, a second end and a control end; the first switch A is an NMOS tube, the second switch B is a PMOS tube, a grid G of the NMOS tube is a control end of the first switch A, a drain D of the NMOS tube is a first end of the first switch A, and a source S of the NMOS tube is a second end of the first switch A. The grid G of the PMOS tube is the control end of the second switch B, the source S of the PMOS tube is the first end of the second switch B, and the drain D of the PMOS tube is the second end of the second switch B. The first resistor R1 is connected in series between the first end and the control end of the first switch A, and the resistance value is 470KR (kiloohm); the second resistor R2 is connected in series between the first end and the control end of the second switch B, and the resistance value is 470 KR; the third resistor R3 is a 0R resistor and is connected in series between the other end of the detection resistor R4 and the second voltage detection terminal ADC 2.
The power supply input end VCC is respectively electrically connected with the first end of the first switch A and the first end of the second switch B. A second end of the second switch B is electrically connected with one end of the detection resistor R4; the second end of the first switch A and the other end of the detection resistor R4 are electrically connected with the output end VBAT of the module power supply; and the output end VBAT of the module power supply is used for supplying power to the communication module 11.
The control unit 12 is configured to output a signal for controlling circuit switching to the diagnostic circuit 13, so as to control the diagnostic circuit 13 to switch to a diagnostic mode or a normal operating mode. Specifically, the control unit 12 is configured to receive a control instruction sent by the remote monitoring end through the communication module 11, generate a first switching signal and a second switching signal according to the control instruction, and output the first switching signal to the control end of the first switch a through the first control end diagnosti _ CTRL _ a to control on and off of the first switch a; the control unit 12 is further configured to output a second switch signal to the control terminal of the second switch B via the second control terminal diagnosti _ CTRL _ B to control the on and off of the second switch B. In addition, the control unit 12 is further configured to perform voltage sampling when the second switch B is turned on, specifically, collect voltage data at two ends of the detection resistor R4, and obtain diagnostic data according to the voltage data; specifically, a first voltage value at one end of the detection resistor R4 is collected by the first voltage detection terminal ADC1, a second voltage value at the other end of the detection resistor R4 is collected by the second voltage detection terminal ADC2, and the first voltage value and the second voltage value are used as voltage data. The diagnostic data is used to determine whether there is abnormal electrical leakage from the terminal 1. The specific judgment method is as follows: the control unit 12 calculates a current value on the detection resistor R4 according to the voltage data, and takes the current value and the working mode information of the terminal 1 as diagnosis data; the communication module 11 is configured to send the diagnostic data to a remote monitoring end, and the remote monitoring end determines whether the terminal 1 has abnormal electric leakage based on the diagnostic data.
The resistance value of the detection resistor R4 is less than 0.05 ohm, and the precision is more than or equal to 1%. In this embodiment, the resistance of the detection resistor R4 is 0.01R, the accuracy is 1%, and the power is 1W (watt). In this embodiment, the high-precision and high-power current detection resistor R4 is used to calculate the working current value of the terminal in each working mode, and the detection resistor R4 thus configured can identify the sign of damage to the hardware of the module, thereby better realizing the diagnosis of the health condition of the communication module 11 in the terminal device.
In this embodiment, the diagnostic circuit 13 is composed of two switching devices, namely a first switch a and a second switch B, and the control unit 12 generates control signals of the two switches for controlling the on and off of the corresponding switches, and when the first switch a is turned on and the second switch B is turned off, a power supply input by the power supply input terminal VCC is output to the module power supply output terminal VBAT through the first switch a to supply power to the communication module 11; when the second switch B is turned on and the first switch a is turned off, the power input from the power supply input terminal VCC sequentially passes through the second switch B and the detection resistor R4 and is output to the module power supply output terminal VBAT to supply power to the communication module 11, and at this time, the control unit 12 acquires the voltage data at the two ends of the detection resistor R4 and obtains the diagnosis data according to the voltage data, and further can determine whether the terminal 1 has abnormal electric leakage according to the diagnosis data.
This embodiment can carry out health status diagnosis to communication module 11 in the terminal equipment through the setting of diagnostic circuit 13 including two way switching device, in time discovers the hardware of module and shows the damage sign, in case there is the performance of hardware damage, can further take measures, if in time carry out the equipment maintenance and change, and then guarantee that communication function is not influenced.
Example 2
As shown in fig. 3, the present embodiment provides a remote diagnosis system, which includes a remote monitoring terminal 2 and a terminal 1 with a communication module in embodiment 1; the remote monitoring terminal 2 is in communication connection with the communication module 11 of the terminal 1 through a wireless network.
In this embodiment, the remote monitoring terminal 2 is configured to send a control instruction to the communication module 11 of the terminal 1, and the communication module 11 is configured to transmit the control instruction to the control unit 12; the control instructions include diagnostic instructions and work instructions. When the control command is a diagnosis command, the control unit 12 is configured to output a first switch signal to the control end of the first switch to control the first switch to be turned off, and output a second switch signal to the control end of the second switch to control the second switch to be turned on; when the control command is a working command, the control unit 12 is configured to output a first switch signal to the control end of the first switch to control the first switch to be turned on, and output a second switch signal to the control end of the second switch to control the second switch to be turned off.
In this embodiment, the remote monitoring terminal 2 is further configured to send a working mode instruction to the communication module 11 of the terminal 1, and the communication module 11 is further configured to transmit the working mode instruction to the control unit 12; the control unit 12 is further configured to set the terminal 1 in a corresponding operating mode according to the operating mode instruction.
In this embodiment, when the control instruction is a diagnosis instruction, the control unit 12 is further configured to calculate a current value on the detection resistor according to the acquired voltage data at the two ends of the detection resistor, and use the current value and the operating mode of the terminal 1 as diagnosis data. The communication module 11 is used for sending the diagnosis data to the remote monitoring terminal 2; the remote monitoring terminal 2 is used for judging whether the terminal 1 has abnormal electric leakage or not based on the diagnosis data. Specifically, the remote monitoring terminal 2 is used for comparing the diagnostic data with the standard data corresponding to the working mode, and the terminal 1 has abnormal electric leakage when the current value exceeds 10% of the standard current value corresponding to the working mode.
The operating principle of the remote diagnosis system of the present embodiment is described in more detail below to facilitate a better understanding of the present invention.
1. When the terminal 1 works normally, the first switch a is in a conducting state, the second switch B is disconnected, and the power supply input terminal VCC provides a module power supply output terminal VBAT to the communication module 11 through the NMOS tube.
2. The remote monitoring terminal 2 sends a diagnosis instruction to the terminal 1 to start the diagnosis circuit 13, and the control unit 12 switches the level states of the direct _ CTRL _ a and the direct _ CTRL _ B to turn off the first switch a and turn on the second switch B, with specific timing sequence referring to fig. 4. The first switch a and the second switch B are turned on simultaneously, and then the first switch a is turned off, the second switch B is turned on, and the diagnostic circuit 13 starts to operate.
3. The remote monitoring terminal 2 sends a working mode command to the terminal 1, so that the terminal 1 enters a first working mode, and at this time, the control unit 12 samples voltage values at two ends of the detection resistor R4 through the first voltage detection terminal ADC1 and the second voltage detection terminal ADC2, which are respectively V1 and V2.
4. After obtaining the two voltage values, the control unit 12 calculates an operating current I1 of the terminal 1 in the operating mode 1 according to the formula I1 ═ V1-V2)/R4.
5. If data of a plurality of modes are to be tested, the above steps 3 and 4 can be repeated, and the operating currents I2, I3 and … In which the terminal 1 is In the operating mode 2, the operating mode 3, … …, the operating mode n and the like, respectively, can be obtained, wherein n is a positive integer.
6. The communication module 11 of the terminal 1 transmits the operation mode information and the corresponding operation current information to the remote monitoring terminal 2.
7. After obtaining the data, the remote monitoring terminal 2 may send a working instruction to the terminal 1, so that the terminal enters a normal working state, at this time, the first switch a is turned on, and the second switch B is turned off. And the remote monitoring terminal 2 compares the obtained working current with the standard current value in the database, and if the current consumption value is obviously larger, the terminal 1 is judged to have certain abnormal electric leakage.
8. The remote monitoring terminal 2 can also inform the customer to repair and replace the equipment with risk in hardware.
In this embodiment, the terminal 1 is in a normal operating mode by default, and at this time, the first switch a is turned on, and the second switch B is turned off, which can be implemented by the remote monitoring terminal 2 sending an operating instruction to the communication module 11 of the terminal 1. When the health condition of the communication module 11 in the terminal device needs to be diagnosed, the remote monitoring terminal 2 sends a diagnosis instruction to the communication module 11 of the terminal 1, the control unit 12 outputs a corresponding first switch signal and a corresponding second switch signal after receiving the diagnosis instruction so that the first switch a is turned off and the second switch B is turned on, at this time, the control unit 12 acquires voltage data at two ends of the detection resistor and obtains diagnosis data according to the voltage data, the communication module transmits the diagnosis data to the remote monitoring terminal 2, and the remote monitoring terminal 2 judges whether the terminal 1 has abnormal electric leakage according to the diagnosis data.
In the embodiment, the terminal 1 including multiple working modes can be diagnosed finely, the working modes of the terminal 1 are set by sending the working mode instructions through the remote monitoring terminal 2, the terminal 1 in different working modes is subjected to diagnostic data acquisition, and the remote monitoring terminal 2 compares the received diagnostic data with the standard data corresponding to the working mode corresponding to the diagnostic data so as to judge whether the terminal 2 has abnormal electric leakage when the corresponding working mode works.
In this embodiment, the diagnostic data is specifically defined as the current value obtained by dividing the voltage data by the resistance value of the detection resistor and the operation mode of the terminal 2. In this embodiment, the remote monitoring terminal 2 is implemented by comparing the difference between the current value and the standard current value when determining whether the terminal 1 leaks electricity abnormally. The standard current value can be prestored in a database, and different working modes correspond to different standard current values. The remote monitoring terminal 2 searches the corresponding standard current value in the database according to the working mode corresponding to the received current value to complete the subsequent comparison.
The remote diagnosis system provided by the embodiment can diagnose the health condition of the communication modules 11 dispersed in the terminal equipment of the client, and can timely find the damage signs of the hardware of the modules, and once the hardware is damaged, measures can be further taken, such as timely maintaining and replacing the equipment, so as to ensure that the communication function is not influenced.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. A terminal with a communication module comprises a power supply input end and the communication module, and is characterized by further comprising a diagnosis circuit and a control unit; the control unit is in communication connection with the communication module;
the diagnosis circuit comprises a first switch, a second switch, a detection resistor and a module power supply output end; the first switch and the second switch respectively comprise a first end, a second end and a control end;
the input end of the power supply is electrically connected with the first end of the first switch and the first end of the second switch respectively;
the second end of the second switch is electrically connected with one end of the detection resistor;
the second end of the first switch and the other end of the detection resistor are electrically connected with the output end of the module power supply;
the module power supply output end is used for supplying power to the communication module;
the control unit is used for outputting a first switch signal to the control end of the first switch so as to control the on and off of the first switch;
the control unit is further used for outputting a second switch signal to the control end of the second switch so as to control the second switch to be switched on and off;
the control unit is also used for collecting voltage data at two ends of the detection resistor when the second switch is switched on and obtaining diagnosis data according to the voltage data;
the diagnostic data is used for judging whether the terminal has abnormal electric leakage or not.
2. The terminal with the communication module of claim 1, wherein the first switch is an NMOS transistor and the second switch is a PMOS transistor, the terminal further comprising a first resistor and a second resistor; the first resistor is connected between the first end and the control end of the first switch in series; the second resistor is connected between the first end and the control end of the second switch in series;
the grid electrode of the NMOS tube is the control end of the first switch, the drain electrode of the NMOS tube is the first end of the first switch, and the source electrode of the NMOS tube is the second end of the first switch;
the grid electrode of the PMOS tube is the control end of the second switch, the source electrode of the PMOS tube is the first end of the second switch, and the drain electrode of the PMOS tube is the second end of the second switch.
3. The terminal with the communication module of claim 1, wherein the resistance of the sensing resistor is less than 0.05 ohms and the accuracy of the sensing resistor is greater than or equal to 1%.
4. The terminal with the communication module according to claim 3, wherein the control unit is further configured to calculate a current value on the detection resistor according to the voltage data, and use the current value and the operation mode information of the terminal as the diagnostic data;
the communication module is used for sending the diagnosis data to a remote monitoring end;
and the remote monitoring terminal judges whether the terminal has abnormal electric leakage or not based on the diagnosis data.
5. The terminal with the communication module according to claim 4, wherein the control unit is further configured to receive a control command sent by the remote monitoring terminal through the communication module, and generate the first switching signal and the second switching signal according to the control command.
6. The terminal with the communication module according to claim 1, wherein the terminal is an internet of things terminal, and the communication module is a communication module.
7. A remote diagnosis system comprising a remote monitoring terminal and a terminal with a communication module according to any one of claims 1 to 6; the remote monitoring terminal is in communication connection with the communication module of the terminal through a wireless network;
the remote monitoring terminal is used for sending a control instruction to a communication module of the terminal, and the communication module is used for transmitting the control instruction to the control unit; the control instruction comprises a diagnosis instruction and a working instruction;
when the control instruction is the diagnosis instruction, the control unit is used for outputting a first switch signal to the control end of the first switch to control the first switch to be switched off, and is also used for outputting a second switch signal to the control end of the second switch to control the second switch to be switched on; when the control instruction is the working instruction, the control unit is used for outputting a first switch signal to the control end of the first switch to control the first switch to be switched on, and is also used for outputting a second switch signal to the control end of the second switch to control the second switch to be switched off;
the communication module is also used for sending the diagnosis data to the remote monitoring terminal;
and the remote monitoring terminal is used for judging whether the terminal has abnormal electric leakage or not based on the diagnosis data.
8. The remote diagnostic system of claim 7, wherein the remote monitoring terminal is further configured to send an operation mode command to the communication module of the terminal, and the communication module is further configured to transmit the operation mode command to the control unit;
the control unit is also used for setting the terminal to be in a corresponding working mode according to the working mode instruction;
and the remote monitoring end is also used for comparing the diagnostic data with the standard data corresponding to the working mode and judging whether the terminal has abnormal electric leakage according to the comparison result.
9. The remote diagnostic system of claim 8, wherein the control unit is further configured to calculate a current value across the detection resistor according to the voltage data, and use the current value and an operation mode of the terminal as the diagnostic data.
10. The remote diagnosis system according to claim 9, wherein said determining whether the terminal has abnormal electrical leakage according to the result of the comparison is: and when the current value exceeds 10% of the standard current value corresponding to the working mode, the terminal has abnormal electric leakage.
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| CN202010376823.XA CN111693891A (en) | 2020-05-07 | 2020-05-07 | Terminal with communication module and remote diagnosis system |
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| CN113092999A (en) * | 2021-04-02 | 2021-07-09 | 中国第一汽车股份有限公司 | Switching value input diagnosis device and diagnosis method |
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| JP2005003522A (en) * | 2003-06-12 | 2005-01-06 | Yokogawa Electric Corp | Diagnostic circuit for output contact arrangement |
| CN106526403A (en) * | 2016-12-07 | 2017-03-22 | 宇龙计算机通信科技(深圳)有限公司 | Terminal leak current detection circuit, terminal and terminal leak current detection system |
| CN109491300A (en) * | 2018-12-26 | 2019-03-19 | 浙江中控技术股份有限公司 | A kind of output circuit and method of on-off model |
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2020
- 2020-05-07 CN CN202010376823.XA patent/CN111693891A/en active Pending
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|---|---|---|---|---|
| JP2005003522A (en) * | 2003-06-12 | 2005-01-06 | Yokogawa Electric Corp | Diagnostic circuit for output contact arrangement |
| CN106526403A (en) * | 2016-12-07 | 2017-03-22 | 宇龙计算机通信科技(深圳)有限公司 | Terminal leak current detection circuit, terminal and terminal leak current detection system |
| CN109491300A (en) * | 2018-12-26 | 2019-03-19 | 浙江中控技术股份有限公司 | A kind of output circuit and method of on-off model |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113092999A (en) * | 2021-04-02 | 2021-07-09 | 中国第一汽车股份有限公司 | Switching value input diagnosis device and diagnosis method |
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