CN109738794A - A kind of real-time monitoring system of relay - Google Patents
A kind of real-time monitoring system of relay Download PDFInfo
- Publication number
- CN109738794A CN109738794A CN201910069376.0A CN201910069376A CN109738794A CN 109738794 A CN109738794 A CN 109738794A CN 201910069376 A CN201910069376 A CN 201910069376A CN 109738794 A CN109738794 A CN 109738794A
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- controller
- moment
- contact switch
- current signal
- relay
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- Keying Circuit Devices (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Relay Circuits (AREA)
Abstract
The present invention provides a kind of real-time monitoring system of relay, including controller, first current sensor and the second current sensor, the controller is separately connected the output end of the first current sensor and the output end of the second current sensor, the input terminal of first current sensor connects the coil of measured relay to detect the current signal of its power on/off moment, and the current signal of the coil power on/off moment measured is reached the controller, the input terminal of second current sensor connects the contact switch of measured relay to detect the current signal of its on-off moment, and the current signal of the contact switch on-off moment measured is reached the controller, the controller judges whether the contact switch of measured relay is abnormal according to the current signal of the current signal of the coil power on/off moment and the on-off moment of the contact switch.
Description
Technical field
The present invention relates to a kind of major loop relay status detection device and methods, are based on relay more particularly, to one kind
Real-time inspection and control system.
Background technique
At present, it is common to use relay is controlled as the switching device of LED by controlling conducting and the disconnection of relay
The opening and closing of LED processed.After long-term use, because constantly carrying out opening and closing movement certain shape can occur relay for contact switch
Become, for contact switch after deformation occurs, contact switch can act delay in conducting and disconnection because of deformation, i.e., can make relay
Conducting and disconnect sensitivity decrease, i.e., the conducting of relay and disconnect the time required to can it is elongated, so as to cause LED opening and closing when
Between it is elongated, and then influence user usage experience.
Summary of the invention
The technical problem to be solved in the present invention is to provide it is a kind of can the contact switch of control relay whether on-off is abnormal
Monitoring system.
In order to solve the above technical problems, the present invention provides a kind of real-time monitoring system of relay, including controller, first
Current sensor and the second current sensor, the controller are separately connected the output end and the second electric current of the first current sensor
The output end of sensor, the coil of the input terminal connection measured relay of first current sensor is to detect its power on/off wink
Between current signal, and the current signal of the coil power on/off moment measured is reached the controller, second electric current passes
The input terminal of sensor connects the contact switch of measured relay to detect the current signal of its on-off moment, and the contact measured
The current signal of switch on and off moment reaches the controller, and the controller is believed according to the electric current of the coil power on/off moment
Number and the contact switch on-off moment current signal judge measured relay contact switch whether extremely, specifically:
If the current signal that the controller obtains the coil energization moment is believed with the electric current that moment is connected in the acquisition contact switch
Time difference between number is greater than preset time, then controller judges that the contact switch of measured relay is abnormal；If the controller
Obtain the time between the current signal of the coil blackout moment and the current signal for obtaining the contact switch disconnection moment
Difference is greater than preset time, then controller judges that the contact switch of measured relay is abnormal.
Preferably, it is led if the controller obtains the current signal of the coil energization moment and obtains the contact switch
Time difference between the current signal of logical moment is less than preset time, then controller is judging the contact switch of measured relay just
Often.
Preferably, break if the controller obtains the current signal of the coil blackout moment and obtains the contact switch
The time difference opened between the current signal of moment is less than preset time, then controller is judging the contact switch of measured relay just
Often.
Preferably, the indicating lamp module including connection controller, the controller judge coil and/or the contact of relay
Switch exception then controls the indicating lamp module and lights.
Preferably, the controller is MCU controller.
The invention has the following advantages: if the contact switch of relay deformation occurs, contact switch conducting and
Delay can be acted when disconnection because of deformation, i.e., the coil of relay after power on/off moment after a rapid lapse of time, open by contact
Guan Caihui on-off, such second current sensor obtains the current signal of contact switch on-off moment and first sensor obtains line
The time difference enclosed between the current signal of power on/off moment can be greater than preset time, therefore controller judges out the touching of relay
Point switch is abnormal.
Detailed description of the invention
Fig. 1 is the circuit diagram of the real-time detecting system connection relay of relay.
Specific embodiment
Hereinafter reference will be made to the drawings, and the invention will be further described with example.
As shown in Figure 1, the real-time monitoring system of relay includes controller 1, the first current sensor 2, the second electric current biography
Sensor 3 and indicating lamp module 4, the relay for LED include coil 5 and contact switch 6, and the controller 1 is separately connected
The output end and indicating lamp module 4 of the output end of one current sensor 2, the second current sensor 3, first current sensor
The coil 5 of 2 input terminal connection measured relay leads to the coil 5 measured with detecting the current signal of its power on/off moment
The current signal of shutdown transient reaches the controller 1, the input terminal connection measured relay of second current sensor 3
Contact switch 6 reaches the current signal of the 6 on-off moment of contact switch measured with detecting the current signal of its on-off moment
The controller 1.The controller 1 is according to the current signal of the 5 power on/off moment of coil and the on-off of the contact switch 6
The current signal of moment judges whether the contact switch 6 of measured relay is abnormal, i.e. whether the contact switch 6 of measured relay is sent out
Raw deformation, specifically: in the present embodiment, the normal make-and-break time of relay contact switch 6 is set as 0.1S, then in controller 1
Preset time is 0.1S；If the controller 1 obtains the current signal of the energization moment of coil 5 and obtains the contact switch
The time difference be connected between the current signal of moment is greater than 0.1S, then controller 1 judges that the contact switch 6 of measured relay is abnormal
(i.e. deformation occurs for contact switch 6), and control instructions lamp module 4 is lighted to prompt user；If the controller 1 obtains the line
It the current signal of 5 energization moments of circle and obtains the contact switch and is connected the time difference between the current signal of moment and be less than
0.1S, then controller 1 judges that the contact switch 6 of measured relay is normal (i.e. there is no deformation for contact switch 6), then controller
1 not control instructions lamp module 4 light；If the controller 1 obtains described in current signal and the acquisition of 5 shutdown transient of coil
Contact switch 6 disconnects the time difference between the current signal of moment greater than 0.1S, then controller 1 judges the contact of measured relay
Switch 6 is abnormal (i.e. deformation occurs for contact switch 6), and control instructions lamp module 4 is lighted to prompt user；If the controller 1
Obtain the current signal of 5 shutdown transient of coil and obtain the contact switch 6 disconnect between the current signal of moment when
Between difference be less than 0.1S, then controller 1 judge measured relay contact switch 6 normally (i.e. there is no deformation for contact switch 6),
Then controller 1 not light by control instructions lamp module 4.
In the present embodiment, controller preferably uses MCU controller.
Claims (5)
1. a kind of real-time monitoring system of relay, it is characterised in that: including controller, the first current sensor and the second electric current
Sensor, the controller is separately connected the output end of the first current sensor and the output end of the second current sensor, described
The input terminal of first current sensor connects the coil of measured relay to detect the current signal of its power on/off moment, and survey
The current signal of the coil power on/off moment obtained reaches the controller, and the input terminal connection of second current sensor is tested
The contact switch of relay believes the electric current of the contact switch on-off moment measured with detecting the current signal of its on-off moment
Number reach the controller, the controller is logical according to the current signal of the coil power on/off moment and the contact switch
The current signal of disconnected moment judges whether the contact switch of measured relay is abnormal, specifically: if described in controller acquisition
The time difference between the current signal of moment is connected greater than pre- in the current signal and the acquisition contact switch of coil energization moment
If the time, then controller judges that the contact switch of measured relay is abnormal；If the controller obtains the coil blackout moment
Current signal and obtain the time difference that the contact switch disconnects between the current signal of moment and be greater than preset time, then control
Device judges that the contact switch of measured relay is abnormal.
2. the real-time monitoring system of relay according to claim 1, it is characterised in that: if described in controller acquisition
The time difference between the current signal of moment is connected less than pre- in the current signal and the acquisition contact switch of coil energization moment
If the time, then controller judges that the contact switch of measured relay is normal.
3. the real-time monitoring system of relay according to claim 1, it is characterised in that: if described in controller acquisition
Time difference between the current signal of coil blackout moment and the current signal for obtaining the contact switch disconnection moment is less than pre-
If the time, then controller judges that the contact switch of measured relay is normal.
4. the real-time monitoring system of relay according to claim 1, it is characterised in that: the instruction including connecting controller
Lamp module, the controller judge that the coil of relay and/or contact switch then control the indicating lamp module extremely and light.
5. the real-time monitoring system of relay according to claim 1, it is characterised in that: the controller is MCU control
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069376.0A CN109738794A (en) | 2019-01-24 | 2019-01-24 | A kind of real-time monitoring system of relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069376.0A CN109738794A (en) | 2019-01-24 | 2019-01-24 | A kind of real-time monitoring system of relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109738794A true CN109738794A (en) | 2019-05-10 |
Family
ID=66365983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910069376.0A Withdrawn CN109738794A (en) | 2019-01-24 | 2019-01-24 | A kind of real-time monitoring system of relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109738794A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161420A (en) * | 2019-06-28 | 2019-08-23 | 安徽江淮汽车集团股份有限公司 | A kind of fuel cell car block terminal detection circuit and detection device |
| CN113109704A (en) * | 2021-04-14 | 2021-07-13 | 小熊电器股份有限公司 | Relay service life monitoring method and circuit and household appliance |
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|---|---|---|---|---|
| CN101201390A (en) * | 2007-10-30 | 2008-06-18 | 厦门顶科电子有限公司 | Method for rapidly and accurately detecting armature overtravel of electromagnetic relay and device thereof |
| US20110241692A1 (en) * | 2010-03-30 | 2011-10-06 | Yamatake Corporation | Relay end-of-service-life forecasting device |
| CN105068000A (en) * | 2015-08-25 | 2015-11-18 | 天津市英贝特航天科技有限公司 | Circuit and method for detection of relay actuation time |
| CN106054071A (en) * | 2016-08-11 | 2016-10-26 | 国家电网公司 | Relay calibration instrument |
| CN106707155A (en) * | 2016-12-30 | 2017-05-24 | 中车长春轨道客车股份有限公司 | Small-capacity contactor acting characteristic test system and method |
| CN207965074U (en) * | 2018-01-30 | 2018-10-12 | 中国人民解放军海军航空大学青岛校区 | A kind of relay test circuit |
-
2019
- 2019-01-24 CN CN201910069376.0A patent/CN109738794A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101201390A (en) * | 2007-10-30 | 2008-06-18 | 厦门顶科电子有限公司 | Method for rapidly and accurately detecting armature overtravel of electromagnetic relay and device thereof |
| US20110241692A1 (en) * | 2010-03-30 | 2011-10-06 | Yamatake Corporation | Relay end-of-service-life forecasting device |
| CN105068000A (en) * | 2015-08-25 | 2015-11-18 | 天津市英贝特航天科技有限公司 | Circuit and method for detection of relay actuation time |
| CN106054071A (en) * | 2016-08-11 | 2016-10-26 | 国家电网公司 | Relay calibration instrument |
| CN106707155A (en) * | 2016-12-30 | 2017-05-24 | 中车长春轨道客车股份有限公司 | Small-capacity contactor acting characteristic test system and method |
| CN207965074U (en) * | 2018-01-30 | 2018-10-12 | 中国人民解放军海军航空大学青岛校区 | A kind of relay test circuit |
Non-Patent Citations (1)
| Title |
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| 杜太行 等: "继电器时间参数的计算机检测技术", 《继电器》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161420A (en) * | 2019-06-28 | 2019-08-23 | 安徽江淮汽车集团股份有限公司 | A kind of fuel cell car block terminal detection circuit and detection device |
| CN113109704A (en) * | 2021-04-14 | 2021-07-13 | 小熊电器股份有限公司 | Relay service life monitoring method and circuit and household appliance |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190510 |
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| WW01 | Invention patent application withdrawn after publication |