CN212275870U - Current real-time detection and fault diagnosis system for electrical appliance - Google Patents
Current real-time detection and fault diagnosis system for electrical appliance Download PDFInfo
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- CN212275870U CN212275870U CN201922450185.7U CN201922450185U CN212275870U CN 212275870 U CN212275870 U CN 212275870U CN 201922450185 U CN201922450185 U CN 201922450185U CN 212275870 U CN212275870 U CN 212275870U
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Abstract
The utility model relates to a current real-time detection and fault diagnosis system with electrical apparatus, this system includes: an air switch installed in the line; the current sensor is arranged in the air switch or on circuits at two ends of the air switch; an AD conversion circuit connected to the current sensor; a load connected to the line; and the controller is respectively connected with the AD conversion circuit and the load. Compared with the prior art, the utility model has the advantages of the security is high, really realize that thing networking function, operation are very convenient.
Description
Technical Field
The utility model belongs to the technical field of the safe power consumption technique and specifically relates to a current real-time detection and fault diagnosis system with electrical apparatus is related to.
Background
Electric energy is a convenient energy source, and the wide application of the electric energy forms the second technical revolution in recent human history. The development of the human society is powerfully promoted, huge wealth is created for human beings, and the life of the human beings is improved.
However, if the safety power utilization is not noticed in production and life, disasters can be caused. For example, an electric shock may cause personal injury and death, and electric sparks generated by equipment leakage may cause fire and explosion.
An air switch is also called an air circuit breaker, and is a type of circuit breaker. The switch can be automatically switched off as long as the current in the circuit exceeds the rated current. The air switch is an important electric appliance in a low-voltage distribution network and an electric power dragging system, and integrates control and multiple protection functions. However, as a device of a switching value, a common air switch is disconnected only when a rated current in a circuit exceeds, and heating monitoring caused by electric leakage and line aging is not available, so that it is necessary to develop a new device for accurately positioning a fault of a power transmission line when the air switch does not reach a rated current but potential safety hazards (electric leakage or line aging) exist, and the technical problem to be solved is solved.
SUMMERY OF THE UTILITY MODEL
The object of the present invention is to provide a current real-time detection and fault diagnosis system for electrical equipment in order to overcome the defects of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
according to the utility model discloses an aspect provides a current real-time detection and fault diagnosis system with electrical apparatus, include:
an air switch installed in the line;
the current sensor is arranged in the air switch or on circuits at two ends of the air switch;
an AD conversion circuit connected to the current sensor;
a load connected to the line;
and the controller is respectively connected with the AD conversion circuit and the load.
Preferably, the air switch and the current sensor are both assigned with a unique ID, and each type of load is also assigned with a unique ID.
Preferably, the control unit is provided with a memory unit for the presence of the load rating of the line itself and the rating of the corresponding air switch.
Preferably, the load comprises a processor, and an energizing switch, a communication circuit and a memory storing a standard value of the load current, which are respectively connected with the processor.
As a preferable technical solution, the load is provided with a power-on trigger circuit, the power-on trigger circuit includes a processing chip, and a switch trigger, a storage chip storing a load current standard value and a signal sending chip which are respectively connected with the processing chip, and the switch trigger is connected with a power-on plug of the load.
As a preferred technical solution, the switch trigger is a relay, wherein a coil of the relay is connected with an energizing plug of a load, and a contact of the relay is connected with a processing chip.
As a preferred technical solution, the apparatus further comprises a display module connected to the controller, the display module is:
the display screen is used for displaying the current condition of the corresponding line of each air switch in real time and obviously marking the abnormal condition;
or a VR display used for virtually and stereoscopically displaying the current condition of the corresponding line of each air switch and displaying the abnormal condition in an important way.
As a preferred technical solution, the apparatus further comprises a cloud platform connected with the controller.
Preferably, the device further comprises a temperature sensor connected to the AD conversion circuit, and the temperature sensor is installed in the circuit.
Compared with the prior art, the utility model has the advantages of it is following:
1) the safety is extremely high, and by collecting the current value actually passing through the air switch and comparing the current value with the corresponding load standard value, even if the total load of the line does not reach the rated value of the air switch (the air switch is not tripped), whether electric leakage exists in the line or not and line aging can be monitored, and electric energy loss and potential safety hazards (safety accidents caused by electric shock and the like) caused by the electric leakage and the like are prevented;
2) the function of the internet of things is really realized, and the controller automatically identifies the corresponding equipment in each line and senses the equipment with each other by distributing unique ID labels (or IP addresses) to the air switch, the current sensor and each type of load, so that the interconnection and intercommunication among the equipment are really realized;
3) the operation is very convenient, different loads are classified, the intelligent load can be realized by only adding a short program for burning, other non-intelligent equipment can be realized by only adding a simple intelligent chip, the wireless manual operation is realized, the signal transmission of each load is triggered by plugging electricity, the automatic detection of the line load can be realized, and the convenience of the operation is improved;
4) the detection precision is high, and the detection precision is further improved by carrying out double detection through the current sensor and the temperature sensor;
5) the potential safety hazard is thoroughly eliminated, set up the memory cell that is used for having circuit self load rating and corresponds the air switch rating through the controller, when the load current value that the controller received exceeded circuit self load rating, carry out alarm processing, avoid the circuit to exceed self load, but the potential safety hazard that exists when not reaching the rating of air switch, the inconsistent condition of the rating of the air switch rating of installation and circuit among the prior art has effectively been solved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the smart load of the present invention;
fig. 3 is a schematic structural diagram of the power-on trigger circuit for a common load according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
As shown in fig. 1, a current real-time detection and fault diagnosis system for an electrical appliance includes:
an air switch 1 installed in a line;
the current sensor 2 is arranged in the air switch or on circuits at two ends and is used for collecting the current value flowing through the air switch;
the AD conversion circuit 3 is connected with the current sensor and used for converting the analog signals collected by the current sensor into digital signals;
a load 4 connected to the line;
and the controller 5 is respectively connected with the AD conversion circuit and the load and used for comparing the digital signal output by the AD conversion circuit with a standard value signal sent by the load, and when the difference value between the digital signal and the standard value signal exceeds a set value, the load and a corresponding line can be judged to have a fault loop, and the judging process can be realized by a hardware judging circuit, such as a comparator and other devices.
The air switch 1 and the current sensor 2 are both distributed with unique IDs, each type of load is also distributed with a unique ID, the controller realizes the interconnection of objects through the IDs, and the high-efficiency Internet of things is realized through the intelligent chips of all the devices, so that the whole device forms an intelligent Internet of things system. In addition, because the number of the loaded devices is large, only one ID is allocated to each type of load, so that the phenomenon that the number of the IDs is too large to cause the surge of subsequent data volume can be avoided, and the data processing of the subsequent cloud platform is facilitated.
The load 4 can be an intelligent electrical device (which can contain an intelligent chip), such as an intelligent refrigerator, an intelligent electric cooker, an intelligent television, an intelligent air conditioner and the like, or an ordinary electrical device (which does not have an intelligent chip), such as an ordinary refrigerator, an ordinary electric cooker, an ordinary television, an ordinary air conditioner, an ordinary kettle, an ordinary desk lamp and the like.
In one embodiment, as shown in fig. 2, the load includes a processor 411, a power-on switch 412, a communication circuit 413 and a memory 414, wherein the power-on switch 412, the communication circuit 413 and the memory 414 are respectively connected to the processor, and when the processor receives a power-on signal from the power-on switch, the communication circuit sends the load current standard value stored in the memory to the controller.
In another embodiment, as shown in fig. 3, the load is equipped with a power-on trigger circuit, the power-on trigger circuit includes a processing chip 421, and a switch trigger 422, a storage chip 423 storing a standard value of the load current, and a signal sending chip 424 which are respectively connected to the processing chip 421, the switch trigger 422 is connected to a power-on plug 425 of the load; when the power-on plug of the load is inserted into the socket for power-on, the switch trigger triggers the processing chip to send the standard value of the load current to the controller through the signal sending chip. The switch trigger is a relay, wherein a coil of the relay is connected with an electrified plug of a load, and a contact of the relay is connected with the processing chip.
As shown in fig. 1, the device further comprises a display module 6 connected to the controller, the display module is:
the display screen 61 is used for displaying the current condition of the corresponding line of each air switch in real time and obviously identifying the abnormal condition; and the VR display 2 is used for virtually and stereoscopically displaying the current condition of the corresponding line of each air switch and emphatically displaying the abnormal condition. Meanwhile, the performance of the device is further improved by a plurality of display modes.
The device also comprises a cloud platform 7 connected with the controller, the controller transmits the collected data and the analysis fault information to the cloud platform, the cloud platform carries out big data operation, and the cloud platform mainly analyzes the fault information to obtain that the probability of faults of loads or lines is higher. And through the accumulation of a large amount of data, a data base is laid for the subsequent standard establishment.
The device also comprises a temperature sensor 8 connected with the AD conversion circuit, wherein the temperature sensor is arranged in the line and used for monitoring the temperature information of the line and sending the temperature information to the controller through the AD conversion circuit, and the controller comprehensively judges whether a fault loop exists in the line through the current information and the temperature information. The current sensor and the temperature sensor are used for double detection, so that the detection accuracy is further improved.
The storage unit used for storing the line self-load rated value and the corresponding air switch rated value is arranged through the controller, when the load current value received by the controller exceeds the line self-load rated value, alarm processing is carried out, the situation that the line exceeds the self-load is avoided, the potential safety hazard exists when the rated value of the air switch is not reached, and the situation that the air switch rated value installed in the prior art is inconsistent with the rated value of the line is effectively solved.
The working principle of the utility model is as follows:
1) the current sensor with the unique ID number is arranged on the corresponding air switch, the air switch is also provided with the ID number and corresponds to the ID number of the current sensor, and the current sensor collects the current value flowing through the air switch and sends the current value to the AD conversion circuit;
2) the AD conversion circuit converts the analog signal acquired by the current sensor into a digital signal and sends the digital signal to the controller;
3) when a load is accessed into a circuit corresponding to the air switch, the accessed load sends a standard current value of the accessed load to the controller when the accessed load is accessed;
4) the controller compares the digital signal output by the AD conversion circuit with a standard value signal sent by the load, and when the difference value between the digital signal and the standard value signal exceeds a set value, the controller can judge that the load and a corresponding line have a fault loop.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A current real-time detection and fault diagnosis system for an electrical appliance is characterized by comprising:
an air switch installed in the line;
the current sensor is arranged in the air switch or on circuits at two ends of the air switch;
an AD conversion circuit connected to the current sensor;
a load connected to the line;
and the controller is respectively connected with the AD conversion circuit and the load.
2. The system for current real-time detection and fault diagnosis of electric consumer according to claim 1, wherein said air switch and current sensor are each assigned a unique ID component, and each type of load is also assigned a unique ID load.
3. The system for current detection and fault diagnosis of an electrical consumer according to claim 1, characterized in that said controller is provided with a storage unit for the presence of the line's own load rating and the corresponding air switch rating.
4. The system for detecting and diagnosing current of electric consumer in real time as claimed in claim 1, wherein the load comprises a processor, and a power-on switch, a communication circuit and a memory storing standard values of load current, which are respectively connected with the processor.
5. The system for real-time current detection and fault diagnosis of electrical appliances according to claim 1, wherein the load is installed with a power-on trigger circuit, the power-on trigger circuit comprises a processing chip, and a switch trigger, a storage chip storing standard values of load current and a signal sending chip which are respectively connected with the processing chip, and the switch trigger is connected with a power-on plug of the load.
6. The system for detecting current and diagnosing fault of electrical equipment according to claim 5, wherein the switch trigger is a relay, wherein a coil of the relay is connected to a power plug of a load, and a contact of the relay is connected to the processing chip.
7. The system for detecting the current of the electric appliance in real time and diagnosing the fault of the electric appliance according to claim 1, further comprising a display module connected with the controller, wherein the display module is:
the display screen is used for displaying the current condition of the corresponding line of each air switch in real time and obviously identifying the abnormal condition;
or a VR display used for virtually and stereoscopically displaying the current condition of the corresponding line of each air switch and displaying the abnormal condition in an important way.
8. The system for detecting current of electrical appliance and diagnosing fault of electrical appliance according to claim 1, further comprising a cloud platform connected to the controller.
9. The system for current real-time detection and fault diagnosis of electric appliances according to claim 1, further comprising a temperature sensor connected to the AD conversion circuit, the temperature sensor being installed in the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922450185.7U CN212275870U (en) | 2019-12-28 | 2019-12-28 | Current real-time detection and fault diagnosis system for electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922450185.7U CN212275870U (en) | 2019-12-28 | 2019-12-28 | Current real-time detection and fault diagnosis system for electrical appliance |
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| CN212275870U true CN212275870U (en) | 2021-01-01 |
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| CN201922450185.7U Expired - Fee Related CN212275870U (en) | 2019-12-28 | 2019-12-28 | Current real-time detection and fault diagnosis system for electrical appliance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049910A (en) * | 2019-12-28 | 2021-06-29 | 孟庆伦 | Current real-time detection and fault diagnosis system and method for electrical appliance |
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- 2019-12-28 CN CN201922450185.7U patent/CN212275870U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049910A (en) * | 2019-12-28 | 2021-06-29 | 孟庆伦 | Current real-time detection and fault diagnosis system and method for electrical appliance |
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Granted publication date: 20210101 Termination date: 20211228 |