CN113162832A - Intelligent electrical appliance system - Google Patents
Intelligent electrical appliance system Download PDFInfo
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- CN113162832A CN113162832A CN202110309500.3A CN202110309500A CN113162832A CN 113162832 A CN113162832 A CN 113162832A CN 202110309500 A CN202110309500 A CN 202110309500A CN 113162832 A CN113162832 A CN 113162832A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 64
- 238000004891 communication Methods 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 230000009471 action Effects 0.000 claims abstract description 6
- 238000005070 sampling Methods 0.000 claims description 14
- 238000013500 data storage Methods 0.000 claims description 8
- 238000005286 illumination Methods 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000012800 visualization Methods 0.000 abstract description 9
- 230000010354 integration Effects 0.000 abstract description 8
- 230000006870 function Effects 0.000 description 12
- 230000006872 improvement Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 238000013024 troubleshooting Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40293—Bus for use in transportation systems the transportation system being a train
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses an intelligent electrical appliance system, which comprises an intelligent control unit, an I/O interface module for detecting relay contact action information, an electrical monitoring interface module for connecting an electrical device and a hard-wire circuit in an application system, an analog quantity interface module for connecting a detection device in the application system and a network communication interface module for connecting other control systems in the application system, wherein the I/O interface module, the electrical monitoring interface module, the analog quantity interface module and the network communication interface module are respectively connected with the intelligent control unit through double CAN communication buses. The intelligent electrical system is novel and reasonable in structure and high in integration degree, can realize visualization of the working state of the application system, and can effectively improve the overall safety and reliability of the application system.
Description
Technical Field
The invention relates to the technical field of electric control in the traffic industry, and particularly provides an intelligent electric appliance system.
Background
In order to meet the development requirements of the industry, the detection system or equipment in the traffic industry is rapidly developed like a bamboo shoot after rain, particularly in the fields of railways and subways, the development of the system or equipment for monitoring a running part, detecting a bow net, monitoring energy consumption, detecting obstacles, detecting derailment and the like is in a primary scale, and a relatively available standard is formed. However, monitoring of vehicle hard-wired circuits is always a blank in the industry, and according to survey statistics, passenger clearing and rescue events (vehicles are responsible) caused by vehicle circuit faults account for more than 60%. Therefore, an intelligent electrical system that aims to monitor a vehicle hard-wired circuit in real time, improves the integration level of the vehicle circuit and an auxiliary system, and realizes the visualization of the vehicle circuit state is a technical problem that needs to be solved at present.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
In order to overcome the defects, the invention provides an intelligent electrical system which is novel and reasonable in structure and high in integration degree, can realize visualization of the working state of an application system, and can effectively improve the overall safety and reliability of the application system.
The technical scheme adopted by the invention for solving the technical problem is as follows: an intelligent electrical appliance system comprises an intelligent control unit, an I/O interface module for detecting relay contact action information, an electrical monitoring interface module for connecting with an electrical appliance and a hard-line circuit in an application system, an analog quantity interface module for connecting with a detection device in the application system and a network communication interface module for connecting with other control systems in the application system, wherein the I/O interface module, the electrical monitoring interface module, the analog quantity interface module and the network communication interface module are all connected with the intelligent control unit through double CAN communication buses.
As a further improvement of the present invention, the intelligent control unit has an embedded system, two power panels independent of each other for supplying power to the embedded system, and an external interface and a data storage module respectively connected with the embedded system;
the I/O interface module, the electrical monitoring interface module, the analog quantity interface module and the network communication interface module are respectively connected with the external interface through the double CAN communication buses.
As a further improvement of the invention, the embedded system is integrated with an ARM processor, and a RAM memory and a FLASH memory which are respectively connected with the ARM processor;
the power panel adopts a 1+1 type redundant power panel; the external interface adopts at least one of a digital interface and an analog interface; the data storage module adopts a solid state disk with the memory capacity not less than 1 TB.
As a further improvement of the present invention, the electrical monitoring interface module includes a dc voltage monitoring interface module for monitoring dc voltage information and an ac voltage monitoring interface module for detecting ac voltage information, wherein the dc voltage monitoring interface module has a ground voltage dividing resistor for connecting with a dc voltage monitoring port to form a voltage sampling signal, a voltage following amplifying circuit connected to a non-grounded terminal of the ground voltage dividing resistor, a signal amplifying circuit connected to an output terminal of the voltage following amplifying circuit, and a protection circuit a connected between the output terminal of the signal amplifying circuit and the external interface;
the alternating voltage monitoring interface module is provided with a current limiting circuit connected with an alternating voltage monitoring port, a current type voltage transformer connected with the current limiting circuit, a sampling resistor connected with the output end of the current type voltage transformer to form a voltage sampling signal, an operational amplification circuit connected with the sampling resistor, and a protection circuit B connected between the output end of the operational amplification circuit and the external interface.
As a further improvement of the present invention, the analog interface module includes a temperature signal interface module for connecting to a temperature sensor in an application system, and the temperature signal interface module has a precision resistor connected to a thermistor for voltage division, a reference voltage source chip connected between an external power supply and one end of the precision resistor, and a digital-to-analog converter connected between the other end of the precision resistor and the external interface.
As a further improvement of the invention, the electric devices in the application system comprise a circuit breaker, a relay, a contactor and an electromagnetic valve; the detection device comprises a smoke and fire alarm sensor, an illumination sensor, a temperature sensor and a humidity sensor; other control systems include vehicle monitoring systems.
The invention has the beneficial effects that: the intelligent electrical system integrates multiple functions such as a function of replacing a relay hard-line circuit (logic circuit), a function of monitoring electrical devices and hard-line circuits, a function of integrating a control unit of a subsystem of an application system, a function of communicating with an application system network in a bus mode and the like, so that the intelligent electrical system is high in integration degree, can effectively reduce the construction difficulty and the construction cost of the application system, and can effectively improve the overall safety and reliability of the application system; the visualization of the working state of the application system can be realized, namely the monitoring of the working state (such as the state of a hard-wire circuit) of the application system can be realized through the visualization, so that the hidden trouble of the fault can be found in advance, the troubleshooting and disposal efficiency of the fault can be improved, and the safety and the reliability of the application system can be further improved.
Drawings
FIG. 1 is a block diagram of the working principle of the intelligent electrical system according to the present invention;
FIG. 2 is a circuit diagram of the DC voltage monitoring interface module according to the present invention;
FIG. 3 is a circuit diagram of an AC voltage monitoring interface module according to the present invention;
fig. 4 is a circuit diagram of the temperature signal interface module according to the present invention.
The following description is made with reference to the accompanying drawings:
1-an intelligent control unit; 10-embedded system; 11-power panel; 12-an external interface; 13-a data storage module; 2-I/O interface module; 3-electrical monitoring interface module; 30-direct voltage monitoring interface module; 31-alternating voltage monitoring interface module; 4-analog interface module; 40-temperature signal interface module; 5-network communication interface module; 6-double CAN communication bus.
Detailed Description
The following description of the embodiments of the present invention is provided by way of specific embodiments, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical significance.
Example 1:
fig. 1 is a block diagram illustrating the working principle of the intelligent electrical system according to the present invention.
The intelligent electrical appliance system comprises an intelligent control unit 1, an I/O interface module 2 for detecting relay contact action information (specifically contact action time and the like), an electrical monitoring interface module 3 for connecting key nodes, buses, grounding points and the like of electrical devices and hard line circuits in an application system, an analog quantity interface module 4 for connecting detection devices in the application system and a network communication interface module 5 for connecting other control systems in the application system, wherein the I/O interface module 2, the electrical monitoring interface module 3, the analog quantity interface module 4 and the network communication interface module 5 are respectively connected with the intelligent control unit 1 through a double CAN communication bus 6. The intelligent electrical system integrates multiple functions such as a function of replacing a relay hard-line circuit (logic circuit), a function of monitoring electrical devices and hard-line circuits, a function of integrating a control unit of a subsystem in an application system, a function of communicating with an application system network in a bus mode and the like, so that the intelligent electrical system has the following advantages: the integration degree is high, so that the construction difficulty and the construction cost of an application system can be effectively reduced, and the overall safety and reliability of the application system can be effectively improved; the visualization of the working state of the application system can be realized, namely the monitoring of the working state (such as the state of a hard-wire circuit) of the application system can be realized through the visualization, so that the hidden trouble of the fault can be found in advance, the troubleshooting and disposal efficiency of the fault can be improved, and the safety and the reliability of the application system can be further improved.
In this embodiment, preferably, the intelligent control unit 1 has an embedded system 10, two power boards 11 that are independent of each other and supply power to the embedded system 10, and an external interface 12 and a data storage module 13 that are respectively connected to the embedded system 10;
the I/O interface module 2, the electrical monitoring interface module 3, the analog quantity interface module 4 and the network communication interface module 5 are respectively connected with the external interface 12 through the double CAN communication bus 6.
Further preferably, the embedded system 10 is integrated with an ARM processor, and a RAM memory and a FLASH memory respectively connected to the ARM processor; description of the drawings: the embedded system used by the invention belongs to a conventional special computer system, and does not relate to the innovation and improvement of a computer program;
the power panel 11 adopts a 1+1 type redundant power panel, the input voltage range of the power panel is 43-160V, the output voltage is constant and is 5V, and the input and the output are isolated; in addition, the power panel also has the functions of output over-voltage and under-voltage protection, over-temperature protection, output overload protection, short-circuit protection, fault self-recovery and the like;
the external interface 12 adopts at least one of a digital interface and an analog interface, such as an SPI interface, an I/O interface, or an HTTP interface;
the data storage module 13 adopts a solid state disk with a memory capacity not less than 1TB, for example, a samsung 860EV0 solid state disk can be adopted, which can ensure that the data storage module can continuously store data for at least 30 days.
In this embodiment, preferably, the electrical monitoring interface module 3 includes a dc voltage monitoring interface module 30 for monitoring dc voltage information, and an ac voltage monitoring interface module 31 for detecting ac voltage information, wherein the dc voltage monitoring interface module 30 has a ground voltage dividing resistor R17 for connecting with a dc voltage monitoring port to form a voltage sampling signal, a voltage following amplifying circuit connected to a non-ground terminal of the ground voltage dividing resistor R17, a signal amplifying circuit connected to an output terminal of the voltage following amplifying circuit, and a protection circuit a connected between the output terminal of the signal amplifying circuit and the external interface 12; the voltage following amplifying circuit, the signal amplifying circuit and the protection circuit A can adopt circuit structures commonly used in the electrical industry, such as: the circuit structure shown in fig. 2 can be adopted, and the voltage following amplifying circuit mainly comprises an operational amplifier U2A, a ground resistor R13 connected to the non-inverting input terminal of the operational amplifier U2A, input resistors R16 and R21 connected to the inverting input terminal of the operational amplifier U2A, a resistor R20 connected between the inverting input terminal and the output terminal of the operational amplifier U2A, and the like; the signal amplifying circuit mainly comprises an operational amplifier U1B, a ground resistor R18 connected to the non-inverting input end of the operational amplifier U1B, a resistor R1 connected between the inverting input end and the output end of the operational amplifier U1B and the like; the protection circuit A mainly comprises diodes D2, D4 and the like which are connected in series; in addition, the following description is provided: the electrical monitoring interface module 3 further comprises a current monitoring interface module for monitoring current information, and the current monitoring interface module can adopt a circuit structure the same as that of the direct-current voltage monitoring interface module;
the ac voltage monitoring interface module 31 has a current limiting circuit connected to an ac voltage monitoring port, a current-mode voltage transformer T1 connected to the current limiting circuit, a sampling resistor R6 connected to the output terminal of the current-mode voltage transformer T1 to form a voltage sampling signal, an operational amplifier circuit connected to the sampling resistor R6, and a protection circuit B connected between the output terminal of the operational amplifier circuit and the external interface 12; the current limiting circuit, the operational amplifier circuit and the protection circuit B may also adopt circuit structures commonly used in the electrical industry, such as: the circuit structure shown in fig. 3 can be adopted, and the current limiting circuit is composed of resistors R2, R3, R4, R8, R9 and R10 which are connected in series with the input end of the current type voltage transformer T1; the operational amplifier circuit mainly comprises an operational amplifier U1A, a resistor R5 connected between one end of a sampling resistor R6 and the inverting input end of an operational amplifier U1A, a resistor R15 connected between the other end of the sampling resistor R6 and the non-inverting input end of the operational amplifier U1A, a resistor R19 connected between the inverting input end and the output end of the operational amplifier U1A and the like; the protection circuit B mainly comprises diodes D1 and D3 which are connected in series.
In this embodiment, preferably, the analog interface module 4 includes a temperature signal interface module 40 for connecting with a temperature sensor in an application system, and as shown in fig. 4, the temperature signal interface module 40 has a precision resistor R16 connected with a thermistor NTC for voltage division, a reference voltage source chip U3 connected between an external power source and one end of the precision resistor R16, and a digital-to-analog converter U2 connected between the other end of the precision resistor R16 and the external interface 12.
Description of the drawings: because the detection devices in the application system comprise a smoke and fire alarm sensor, an illumination sensor, a temperature sensor, a humidity sensor and the like, a plurality of analog quantity interface modules 4 are also provided; the temperature signal interface module 40 can be used in combination with a thermistor NTC, and can also be used in combination with a humidity sensor; in addition, the dc voltage monitoring interface module 30 may also be applied to analog monitoring, for example, the dc voltage monitoring interface module 30 may be used in combination with an illuminance sensor.
In this embodiment, it is preferable that the electric devices in the application system include a circuit breaker, a relay that cannot be replaced by the I/O interface module 2, a contactor, and a solenoid valve; the detection device comprises a smoke and fire alarm sensor, an illumination sensor, a temperature sensor and a humidity sensor; other control systems include a vehicle monitoring system TCMS.
In summary, the intelligent electrical system integrates the intelligent control unit 1, the I/O interface module 2, the electrical monitoring interface module 3, the analog interface module 4 and the network communication interface module 5 through structural innovation, wherein a, the I/O interface module 2 can replace part of relays (i.e. replace logic circuits of the relays), so that the number of vehicle-mounted electrical devices is reduced, and the problem of contradiction between the large increase of the number of electrical devices and limited safety controls of vehicle equipment due to increasing functional requirements of users is solved; b. the electric monitoring interface module 3 can realize real-time online monitoring on electric devices (such as a circuit breaker, a relay, a contactor, an electromagnetic valve and the like) and key nodes, buses, grounding points and the like of a hard line circuit, realize the visualization of the whole state of the vehicle hard line circuit, provide basic data support for intelligent operation and maintenance, diagnosis and troubleshooting, PHM and service life estimation of a vehicle, and provide systematic basic support for state repair of future trains; c. the analog quantity interface module 4 is connected to detection devices (a smoke and fire alarm sensor, an illumination sensor, a temperature sensor, a humidity sensor and the like) in an application system and is controlled by the embedded system 10, so that the deep integration of auxiliary functions of the vehicle can be realized, the vehicle system is simplified, the requirement on safe space of equipment is reduced, and the requirements on fault points, maintenance points and spare parts are reduced; d. the network communication interface module 5, the vehicle control network MVB and the maintenance network (industrial Ethernet) are connected with the vehicle monitoring system TCMS, so that data collected by the I/O interface module 2, the electrical monitoring interface module 3 and the analog quantity interface module 4 are transmitted to the vehicle monitoring system TCMS, the train configuration requirements are greatly reduced, the vehicle and train level wiring construction is reduced, and the train integration level is improved. In a word, the intelligent electrical system disclosed by the invention has high integration degree, can realize visualization of the working state of the application system, and can effectively improve the overall safety and reliability of the application system.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be construed as being within the protective scope of the present invention.
Claims (6)
1. An intelligent electrical system, characterized in that: the intelligent relay contact action detection system comprises an intelligent control unit (1), an I/O interface module (2) used for detecting relay contact action information, an electrical monitoring interface module (3) connected with an electric device and a hard-line circuit in an application system, an analog quantity interface module (4) connected with a detection device in the application system and a network communication interface module (5) connected with other control systems in the application system, wherein the I/O interface module (2), the electrical monitoring interface module (3), the analog quantity interface module (4) and the network communication interface module (5) are respectively connected with the intelligent control unit (1) through a double CAN communication bus (6).
2. The intelligent electrical system of claim 1, wherein: the intelligent control unit (1) is provided with an embedded system (10), two power panels (11) which are mutually independent and supply power to the embedded system (10), an external interface (12) and a data storage module (13) which are respectively connected with the embedded system (10);
the I/O interface module (2), the electrical monitoring interface module (3), the analog quantity interface module (4) and the network communication interface module (5) are respectively connected with the external interface (12) through the double CAN communication bus (6).
3. The intelligent electrical system of claim 2, wherein: the embedded system (10) is integrated with an ARM processor, and an RAM memory and a FLASH memory which are respectively connected with the ARM processor;
the power panel (11) adopts a 1+1 type redundant power panel; the external interface (12) adopts at least one of a digital interface and an analog interface; the data storage module (13) adopts a solid state disk with the memory capacity not less than 1 TB.
4. The intelligent electrical system of claim 2, wherein: the electrical monitoring interface module (3) comprises a direct-current voltage monitoring interface module (30) for monitoring direct-current voltage information and an alternating-current voltage monitoring interface module (31) for detecting alternating-current voltage information, wherein the direct-current voltage monitoring interface module (30) is provided with a ground voltage dividing resistor for connecting with a direct-current voltage monitoring port to form a voltage sampling signal, a voltage following amplifying circuit connected with the non-grounding end of the ground voltage dividing resistor, a signal amplifying circuit connected with the output end of the voltage following amplifying circuit and a protection circuit A connected between the output end of the signal amplifying circuit and the external interface (12);
the alternating voltage monitoring interface module (31) is provided with a current limiting circuit connected with an alternating voltage monitoring port, a current type voltage transformer connected with the current limiting circuit, a sampling resistor connected with the output end of the current type voltage transformer to form a voltage sampling signal, an operational amplification circuit connected with the sampling resistor, and a protection circuit B connected between the output end of the operational amplification circuit and the external interface (12).
5. The intelligent electrical system of claim 2, wherein: the analog quantity interface module (4) comprises a temperature signal interface module (40) connected with a temperature sensor in an application system, wherein the temperature signal interface module (40) is provided with a precision resistor connected with a thermistor for voltage division, a reference voltage source chip connected between an external power supply and one end of the precision resistor, and a digital-to-analog converter connected between the other end of the precision resistor and the external interface (12).
6. The intelligent electrical system of claim 1, wherein: the electric devices in the application system comprise a circuit breaker, a relay, a contactor and an electromagnetic valve; the detection device comprises a smoke and fire alarm sensor, an illumination sensor, a temperature sensor and a humidity sensor; other control systems include vehicle monitoring systems.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110309500.3A CN113162832A (en) | 2021-03-23 | 2021-03-23 | Intelligent electrical appliance system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110309500.3A CN113162832A (en) | 2021-03-23 | 2021-03-23 | Intelligent electrical appliance system |
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| CN113162832A true CN113162832A (en) | 2021-07-23 |
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| CN202110309500.3A Pending CN113162832A (en) | 2021-03-23 | 2021-03-23 | Intelligent electrical appliance system |
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