CN205210161U - Optical fiber temperature fault indicator - Google Patents
Optical fiber temperature fault indicator Download PDFInfo
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- CN205210161U CN205210161U CN201520852529.6U CN201520852529U CN205210161U CN 205210161 U CN205210161 U CN 205210161U CN 201520852529 U CN201520852529 U CN 201520852529U CN 205210161 U CN205210161 U CN 205210161U
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Abstract
The utility model relates to an optical fiber temperature fault indicator, including being used for gathering the sensor unit of electric current, temperature information, sensor unit passes through the low -power consumption MCU data processing module that the optical fiber transmission unit inserted the host computer, the host computer still is equipped with liquid crystal display module, 485 communication module and energy management low -power consumption module, energy management low -power consumption module is sensor unit and the host computer provides low power consumption mode management, sensor unit gets the circuit and adopts current transformer to get the electricity including getting circuit and sampling circuit, and sampling circuit adopts sampling chip. The utility model has the characteristics of system equipment is simple, and it is accurate to report to the police, transmission efficiency is high, can the self -power, the interference killing feature is strong etc, the indicator display is accurate, convenient operation, and the setting of energy management low -power consumption module simultaneously can guarantee that indicator work is at low current state, the effectual life who has prolonged indicator operating time and battery.
Description
Technical field
The utility model relates to a kind of fiber optic temperature fault detector, is a kind of data acquisition and fault detector with optical fiber transmission function.
Background technology
Existing fault detector, the general common cable that adopts transmits, and transfer efficiency is low, poor accuracy, or does not have crystal display, and the display failure cause etc. that can not remove, adds to the difficulties to maintenance job.And also there is the problems such as power consumption height in existing fault detector.
Summary of the invention
In order to solve prior art Problems existing, the purpose of this utility model is to provide a kind of fiber optic temperature fault detector, can obtain electric energy needed for work by current transformer from electrical network.And can precise acquisition current signal, and by Optical Fiber Transmission current data, it be extremely convenient to use.
The technical solution of the utility model is:
A kind of fiber optic temperature fault detector, comprises the sensor unit for gathering electric current, temperature information, and described sensor unit is by the low-power consumption MCU data processing module of Optical Fiber Transmission unit access host.
Preferably, the power-supply circuit that described sensor unit can comprise for AC great current signal being transformed into interchange small area analysis signal exchanges described the sample circuit that small area analysis signal sampling becomes digital signal with being used for, described power-supply circuit adopts current transformer power taking, and described sample circuit adopts sampling A/D chip.
Meanwhile, the output of described power-supply circuit preferably inputs as the power supply of described sample circuit and described low-power consumption MCU data processing module.The output of described power-supply circuit can also input as the power supply of the sensor of described sensor unit, and usually, sensor is also provided with separately powered battery input.
Preferably, described Optical Fiber Transmission unit comprises sensor side electrooptic conversion module and host side photoelectric conversion module.
Preferably, described Optical Fiber Transmission unit is also provided with low-power consumption module.
Described main frame is also preferably provided with LCD MODULE, and the input end of described LCD MODULE is connected with the display data output end of described low-power consumption MCU data processing module.
Described main frame is also preferably provided with 485 communication modules, and described 485 communication modules are connected with the two-way communication of described low-power consumption MCU data processing module.
Preferably, described 485 communication modules adopt modulebus agreement.
Described main frame is also preferably provided with external power interface circuit and battery feed circuit, and the output of described external power interface circuit and battery feed circuit also inputs as the power supply of described low-power consumption MCU data processing module.
Described fiber optic temperature fault detector is also preferably provided with energy management low-power consumption module, and described energy management low-power consumption module can comprise the switch be arranged on described battery feed circuit, for detecting the voltage detecting circuit of external power supply voltage and the current detection circuit for the output current that detects described power-supply circuit.By the testing result of corresponding testing circuit, determine whether to disconnect described switch, thus powered battery is switched to power taking and to power or external power supply is powered.
Described energy management low-power consumption module can also comprise and is arranged on power-supply circuit to the switch on the feed circuit of described sensor and the testing circuit for detecting primary current.
Described power-supply circuit, sample circuit, low-power consumption MCU data processing module, 485 communication modules and the equal concentrated setting of energy management low-power consumption module are in the shell of described main frame, and the display screen of described LCD MODULE is flush-mounted on described shell.
Preferably, the skin of the shell of the sensor that adopts of described sensor unit and described main frame all adopts black material.
The beneficial effects of the utility model are:
Indicator of the present utility model is measured accurately, can detect electric current, Temperature numerical delicately, and antijamming capability is strong, and system assembles is simple, easy to use, reports to the police accurately.
The setting of energy management low-power consumption module enables indicator take rational power supply mode according to actual conditions, ensures that indicator is operated in low current condition simultaneously, effectively extends the serviceable life of indicator working time and battery.
Optical fiber transmission signal can reduce costs compared to traditional cable transmission, improves transmission efficiency; Optical fiber of the present utility model can realize remote signals and telesignalisation in same road Optical Fiber Transmission, and transmission efficiency is high.
The setting of low-power consumption MCU data processing module makes the reception process of signal convenient, can realize fiber-optic signal transmission and reception, making the assembling of indicator simpler when not adding external communication terminal.
LCD MODULE makes detection numerical value check convenient and be beneficial to operational processes.
485 communication modules realize indicator and the communication between host computer, other indicators or backstage, electrical network performance everywhere can be understood in time by 485 communication modules, the distant control function of electrical network can be realized, between multiple indicator system, realize the real-time exchange of information.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is Optical Fiber Transmission structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
See Fig. 1, the utility model discloses a kind of fiber optic temperature fault detector, comprising:
Sensor unit, for gathering electric current, temperature information;
Main frame, for the treatment of the data that described Optical Fiber Transmission unit transmission comes, comprise alarm indication, outbound data exchange etc., the core control portions of described main frame is low-power consumption MCU data processing module, for data storage, calculating, judgement, input and output control etc.;
Optical Fiber Transmission unit, for described sensor unit is gathered data-signal conversion and to main frame Optical Fiber Transmission.Described Optical Fiber Transmission unit two ends connect the low-power consumption MCU data processing module of described sensor unit and main frame respectively, described Optical Fiber Transmission unit adopts optical fiber to carry out data transmission, not only signaling rate is fast, and remote signals and telesignalisation can be realized in same road Optical Fiber Transmission, real-time Transmission current alarm signal, current values, cable temperature alerting signal and Temperature numerical.And optical-fiber type fault detector is installed more simple and convenient than the fault detector of cable-type.
The power-supply circuit that described sensor unit comprises for AC great current signal being transformed into interchange small area analysis signal exchanges described the sample circuit that small area analysis signal sampling becomes digital signal with being used for, described power-supply circuit adopts current transformer power taking, described sample circuit adopts sampling A/D chip, meanwhile, the output of described power-supply circuit is as the power supply input of described sample circuit and described low-power consumption MCU data processing module.Due to electric energy needed for work can be obtained by sensor from electrical network, therefore achieve the self-powered of fault detector.The output of described power-supply circuit can also input as the power supply of the sensor of described sensor unit, and usually, sensor is also provided with separately powered battery input.
Described Optical Fiber Transmission unit comprises sensor side electrooptic conversion module and host side photoelectric conversion module.Described sensor side electrooptic conversion module converts the electric signal that sampling A/D chip sends to light signal and transmits; The light signal of transmission is converted to electric signal and by this electrical signal transfer to described MCU data processing module by described host side photoelectric conversion module.Described sensor side electrooptic conversion module can adopt light emitting diode, and light emitting diode is preferably integrated in the inside of sensor.
Described Optical Fiber Transmission unit also comprises independently low-power consumption module, and described low-power consumption module can make described Optical Fiber Transmission cell operation quiescent current under low power consumpting state remain on below 1uA, thus achieves whole system and can run under low-power consumption.
The advantages such as described Optical Fiber Transmission unit can transmit four road signals simultaneously, comprises electric current alarming value, data and cable temperature alarming value, real-time property is good, easy for installation.
Described low-power consumption MCU data processing module to be gone forward side by side row relax for the data-signal of the UART form receiving the transmission of described Optical Fiber Transmission unit.Described host side photoelectric conversion module converted signals is directly UART form, facilitates the software receipt process of MCU.Described low-power consumption MCU data processing module uses the UART function under low-power consumption when receiving transmission data, under namely low-power consumption MCU data processing module can be operated in low-power consumption when receiving UART formatted data.
Described low-power consumption MCU data processing module includes data memory, for storing the electric current of detection, temperature information and alert data (comprising the electric current and temperature information etc. when time of fire alarming, warning reason, warning), user is facilitated to call stored data in time when needed.
Described main frame is also provided with LCD MODULE, and the input end of described LCD MODULE is connected with the display data output end of described low-power consumption MCU data processing module.Described LCD MODULE shows the contents such as real-time current, real time temperature, electric current early warning value, temperature pre-warning value and alert data storage information, can be used for checking fault alarm data at any time; Described LCD MODULE is preferably touch screen displays or with selecting the display of operation push-button, and its menu and button can facilitate user to make according to the data of display to process operation accordingly.Described low-power consumption MCU data processing module carries out warning to data-signal and judges, when analog value enters default alarm range, to the instruction of described LCD MODULE output alarm, transmits alert data to be shown.
Described main frame is also provided with 485 communication modules, and described 485 communication modules are connected with the two-way communication of described low-power consumption MCU data processing module.Described 485 communication modules are for realizing main frame and the communication between host computer, other indicator main frames or backstage, electrical network performance everywhere can be understood in time by 485 communication modules, the distant control function of electrical network can be realized, between multiple indicator system, realize the real-time exchange of information.
Described 485 communication modules adopt modulebus agreement, and described 485 communication modules can receive the data message that 1-15 platform fiber optic temperature fault detector transmits, and the contents such as the electric current received, temperature, fault letter are sent to background control center.
Described main frame can also be provided with external power interface circuit and battery feed circuit, the output of described external power interface circuit and battery feed circuit inputs as the power supply of described low-power consumption MCU data processing module, and correspondence realizes external power supply and powers and powered battery respectively.
Described fiber optic temperature fault detector can also be provided with energy management low-power consumption module.Described energy management low-power consumption module may be used for main frame provides low-power consumption mode to manage, and comprises the switch be arranged on described battery feed circuit, for detecting the voltage detecting circuit of external power supply voltage and the current detection circuit for the output current that detects described power-supply circuit.Described energy management low-power consumption module can according to circumstances formulate rational power supply mode.When the output current of power-supply circuit is larger, automatically disconnect powered battery, employing power-supply circuit is obtained power supply from electrical network by described indicator; When the output current of power-supply circuit is less, the electric energy obtained from electrical network is not enough to support described indicator and normally works, described energy management low-power consumption module will open the connection of described indicator and battery, adopt internal battery powers, and enter low-power consumption mode, thus keep longer stand-by time, extend the serviceable life of battery.
Described energy management low-power consumption module can also comprise and is arranged on power-supply circuit to the switch on the feed circuit of described sensor and the testing circuit for detecting primary current, makes it the low-power consumption mode management that can be used for sensor unit.When detecting that primary current is enough large, automatically disconnected by the supplying cell of sensor, the power switching of sensor is powered to power taking.
Adopt described energy management low-power consumption module, the stand-by power consumption of described indicator is low, and under dormant state, system power dissipation electric current is less than 5 microamperes.
Described power-supply circuit, sample circuit, low-power consumption MCU data processing module, 485 communication modules and the equal concentrated setting of energy management low-power consumption module are in the shell of described main frame, and the display screen of described LCD MODULE is flush-mounted on described shell.
The skin of the shell of described sensor and main frame all adopts black material, to improve the stability of Optical Fiber Transmission.
The utility model is not limited to above embodiment, disclosed each preferred and optional technological means, unless otherwise indicated and one preferably or alternatives means be outside the further restriction of another technological means, all can combination in any, form some different technical schemes.
The utility model integrated level is high, easy for installation, stand-by power consumption is low, can realize the communication between itself and host computer or multiple fault detector, have collection, display, temperature survey, remote control and remote measure and communication function, there is better human-computer interaction function, compare common cable type fault detector and more convenient and quicker be installed, when not adding external communication terminal, realize main frame fiber-optic signal and receive sampled value and liquid crystal display, and then realize detecting in real time.
Claims (10)
1. a fiber optic temperature fault detector, is characterized in that the sensor unit comprised for gathering electric current, temperature information, and described sensor unit is by the low-power consumption MCU data processing module of Optical Fiber Transmission unit access host.
2. fiber optic temperature fault detector as claimed in claim 1, it is characterized in that described sensor unit comprises and exchange described the sample circuit that small area analysis signal sampling becomes digital signal with being used for for AC great current signal being transformed into the power-supply circuit exchanging small area analysis signal, described power-supply circuit adopts current transformer power taking, described sample circuit adopts sampling A/D chip, meanwhile, the output of described power-supply circuit is as the power supply input of described sample circuit and described low-power consumption MCU data processing module.
3. fiber optic temperature fault detector as claimed in claim 2, is characterized in that described Optical Fiber Transmission unit comprises sensor side electrooptic conversion module and host side photoelectric conversion module.
4. fiber optic temperature fault detector as claimed in claim 3, is characterized in that described Optical Fiber Transmission unit is also provided with low-power consumption module.
5. the fiber optic temperature fault detector as described in claim 2,3 or 4, is characterized in that described main frame is also provided with LCD MODULE, and the input end of described LCD MODULE is connected with the display data output end of described low-power consumption MCU data processing module.
6. fiber optic temperature fault detector as claimed in claim 5, it is characterized in that described main frame is also provided with 485 communication modules, described 485 communication modules are connected with the two-way communication of described low-power consumption MCU data processing module, and described 485 communication modules adopt modulebus agreement.
7. fiber optic temperature fault detector as claimed in claim 6, it is characterized in that described main frame is also provided with external power interface circuit and battery feed circuit, the output of described external power interface circuit and battery feed circuit inputs as the power supply of described low-power consumption MCU data processing module.
8. fiber optic temperature fault detector as claimed in claim 7, it is characterized in that also being provided with energy management low-power consumption module, described energy management low-power consumption module comprising the switch be arranged on described battery feed circuit, for detecting the voltage detecting circuit of external power supply voltage and the current detection circuit for the output current that detects described power-supply circuit, also comprising the sensor feed circuit being arranged on described sensor unit.
9. fiber optic temperature fault detector as claimed in claim 8, it is characterized in that described power-supply circuit, sample circuit, low-power consumption MCU data processing module, 485 communication modules and the equal concentrated setting of energy management low-power consumption module are in the shell of described main frame, the display screen of described LCD MODULE is flush-mounted on described shell.
10. fiber optic temperature fault detector as claimed in claim 9, is characterized in that the skin of the shell of the sensor that described sensor unit adopts and described main frame all adopts black material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520852529.6U CN205210161U (en) | 2015-10-30 | 2015-10-30 | Optical fiber temperature fault indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520852529.6U CN205210161U (en) | 2015-10-30 | 2015-10-30 | Optical fiber temperature fault indicator |
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| Publication Number | Publication Date |
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| CN205210161U true CN205210161U (en) | 2016-05-04 |
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| CN201520852529.6U Active CN205210161U (en) | 2015-10-30 | 2015-10-30 | Optical fiber temperature fault indicator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370917A (en) * | 2016-11-02 | 2017-02-01 | 华电北瑞电气(北京)有限公司 | Intelligent detection system and method for current temperature signal |
| CN110793663A (en) * | 2019-10-22 | 2020-02-14 | 云南恒协科技有限公司 | Intelligent switch cabinet temperature monitoring system and method based on Internet of things technology |
-
2015
- 2015-10-30 CN CN201520852529.6U patent/CN205210161U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370917A (en) * | 2016-11-02 | 2017-02-01 | 华电北瑞电气(北京)有限公司 | Intelligent detection system and method for current temperature signal |
| CN110793663A (en) * | 2019-10-22 | 2020-02-14 | 云南恒协科技有限公司 | Intelligent switch cabinet temperature monitoring system and method based on Internet of things technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Optical fiber temperature fault indicator Effective date of registration: 20180412 Granted publication date: 20160504 Pledgee: Beijing first financing Company limited by guarantee Pledgor: Beijing Hyliton Power Technology Co., Ltd. Registration number: 2018990000288 |