CN102650652A - Equipment uncovering detection device - Google Patents
Equipment uncovering detection device Download PDFInfo
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- CN102650652A CN102650652A CN2012101489567A CN201210148956A CN102650652A CN 102650652 A CN102650652 A CN 102650652A CN 2012101489567 A CN2012101489567 A CN 2012101489567A CN 201210148956 A CN201210148956 A CN 201210148956A CN 102650652 A CN102650652 A CN 102650652A
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Abstract
The invention discloses a detection device, and particularly relates to an equipment uncovering detection device capable of detecting whether field equipment is uncovered or not. The equipment uncovering detection device comprises a photosensitive diode which is mounted in the equipment and can generate counter current when receiving optical signals, a load conversion module which can generate load voltage when receiving counter current generated by the photosensitive diode, a triode which can be conducted at the collector electrode to form low level as soon as receiving the load voltage generated by the load conversion module, a CPU used for sampling low level generated at the collector electrode of the triode, and a terminal server used for receiving information sent by a sampling point, wherein both the photosensitive diode and the triode are connected with a power supply. The detection device has the effects that the detection device can detect whether the casing of equipment is in an open state or not depending on the photosensitive characteristic of the photosensitive diode rather than a mechanical switch, and the condition of uncovering or not can be sent to a remote machine room monitoring computer or other terminal servers in time, so as to facilitate the staff clearing troubles in time.
Description
Technical field
The present invention relates to a kind of pick-up unit, relate in particular to a kind of equipment whether open-air type equipment the is uncapped pick-up unit of uncapping.
Background technology
At present, the pick-up unit of uncapping mostly uses mechanical switch to detect, and generally is mounted in the electric energy meter more.In the open-air type equipment of broadcasting and TV, application is arranged also, no matter use occasion is that indoor or outdoors can both be used.When opening the device cover period of the day from 11 p.m. to 1 a.m; Be made up of a normally closed contact and circuit, be characterized in: normally closed contact is arranged on the cover junction in the equipment, and the button of normally closed contact withstands on the cover; When the equipment cover was closed, the button of surface cover compressing normally closed contact made its disconnection.Uncap during action as artificial, the disconnection of switch produces a pulse signal and by the single-chip microprocessor MCU memory, thereby solves because the people is the electric quantity loss that stealing causes of uncapping.It is convenient, simple that this technology realizes.But the shortcoming of this device is the less stable of mechanical switch, and reliability is not high, and long-time back mechanical contact is prone to oxidation and causes loose contact.
Summary of the invention
The object of the present invention is to provide the uncap embodiment of pick-up unit of a kind of equipment, can solve the existing pick-up unit less stable of uncapping with expectation, reliability is not high, and long-time back mechanical contact is prone to the problem that oxidation causes loose contact.
For addressing the above problem, the technical scheme that the present invention taked is:
A kind of equipment pick-up unit of uncapping is characterized in that: comprise
Be installed in the equipment and can produce the photodiode of inverse current when receiving light signal;
The inverse current that receives the photodiode generation forms the load transfer module of load voltage;
The load voltage that receives the generation of load transfer module forms low level triode with regard to conducting at collector place;
The CPU that the low level that the transistor collector place is produced is sampled;
Receive the terminal server of the information of sampled point transmission;
Said photodiode all links to each other with power supply with triode.
For making the present invention play better technique effect:
Technical scheme further is an above-mentioned triode when not receiving load voltage, and the collector of triode can produce high level.
Technical scheme further is that above-mentioned photodiode all links to each other with the power supply of 3.3V with triode.
Technical scheme further is that above-mentioned load transfer module is to have pull-up resistor shunt load electric capacity to constitute.
Technical scheme further is to be provided with current-limiting resistor voltage divider between above-mentioned pull-up resistor and the triode.
Technical scheme further be above-mentioned triode with terminal server CPU between be electrically connected and be provided with current-limiting resistance.
Technical scheme further be above-mentioned triode with power supply between be electrically connected and be provided with current-limiting resistance.
Adopt the beneficial effect that technique scheme produced to be: the present invention utilizes the sensitometric characteristic of photodiode to come the housing of checkout equipment whether to be in open mode; Whether do not rely on mechanical switch to detect uncaps; Can be in time the situation of whether uncapping be sent to terminal servers such as remote equipment room monitoring computer, so that the staff in time fixes a breakdown.
Description of drawings
Fig. 1 is the uncap connection block diagram of an embodiment of pick-up unit of a kind of equipment of the present invention.
Among the figure, PD1 is a photodiode; R5 is a pull-up resistor; R3 and R4 are current-limiting resistor voltage divider; Q1 is a triode; R1 is a current-limiting resistance; R2 is a current-limiting resistance; C1 is a load voltage; A is the sampled point of CPU.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Fig. 1 shows a uncap embodiment of pick-up unit of a kind of equipment of the present invention: a kind of equipment pick-up unit of uncapping comprises: be installed in the equipment and can produce the photodiode of inverse current when receiving light signal; The inverse current that receives the photodiode generation forms the load transfer module of load voltage; The load voltage that receives the generation of load transfer module forms low level triode with regard to conducting at collector place; The CPU that the low level that the transistor collector place is produced is sampled; Receive the terminal server of the information of sampled point transmission, wherein said photodiode all links to each other with power supply with triode.
A kind of equipment embodiment of pick-up unit that uncaps according to the present invention, when triode was not received load voltage, the collector of triode can produce high level.
A kind of equipment another embodiment of pick-up unit that uncaps according to the present invention, photodiode all links to each other with the power supply of 3.3V with triode.
A kind of equipment another embodiment of pick-up unit that uncaps according to the present invention, the load transfer module is to have pull-up resistor shunt load electric capacity to constitute.
A kind of equipment another embodiment of pick-up unit that uncaps is provided with current-limiting resistor voltage divider between pull-up resistor and the triode according to the present invention.Being electrically connected between a kind of equipment another embodiment of pick-up unit that uncaps according to the present invention, triode and terminal server CPU is provided with current-limiting resistance.Being electrically connected between a kind of equipment another embodiment of pick-up unit that uncaps according to the present invention, triode and power supply is provided with current-limiting resistance.
As shown in Figure 1, when opened the opening and closing place, PD1 received light signal; Produce an inverse current; On pull-up resistor R5, form a voltage, this voltage produces an electric current through current-limiting resistor voltage divider R3 and R4 and receives triode Q1 base stage, makes Q1 be in the conducting duty; The Q1 collector is connected with power supply through current-limiting resistance R1, forms low level at collector place; Otherwise under the state that housing is not opened, PD1 does not receive light signal; Do not have inverse current and produce, do not have voltage on the pull-up resistor R5, Q1 is in closed condition; At collector place is high level just, and whether CPU samples Q1 collector place at the A place high-low level changes, come the housing of judgment device to open; When sampling Q1 collector place high level, think that the housing of equipment opens and closes, when sampling Q1 collector place low level; Think that the housing of equipment opens, send this information to terminal server.
" embodiment " who is spoken of in this manual, " another embodiment ", " embodiment ", " preferred embodiment " etc. refer to the concrete characteristic, structure or the characteristics that combine this embodiment to describe and are included among at least one embodiment of the application's generality description.A plurality of local appearance statement of the same race is not necessarily to refer to same embodiment in instructions.Further, when describing a concrete characteristic, structure or characteristics in conjunction with arbitrary embodiment, what institute will advocate is that other embodiment of combination realize that this characteristic, structure or characteristics also fall within the scope of the invention.
Although invention has been described with reference to a plurality of explanatory embodiment of the present invention here; But; Should be appreciated that those skilled in the art can design a lot of other modification and embodiments, these are revised and embodiment will drop within disclosed principle scope of the application and the spirit.More particularly, in the scope of, accompanying drawing open and claim, can carry out multiple modification and improvement to the building block and/or the layout of subject combination layout in the application.Except modification that building block and/or layout are carried out with improve, to those skilled in the art, other purposes also will be tangible.
Claims (7)
1. equipment pick-up unit of uncapping is characterized in that comprising:
Be installed in the equipment and can produce the photodiode of inverse current when receiving light signal;
The inverse current that receives the photodiode generation forms the load transfer module of load voltage;
The load voltage that receives the generation of load transfer module forms low level triode with regard to conducting at collector place;
The CPU that the low level that the transistor collector place is produced is sampled;
Receive the terminal server of the information of sampled point transmission;
Said photodiode all links to each other with power supply with triode.
2. a kind of equipment according to claim 1 pick-up unit of uncapping, it is characterized in that: when said triode was not received load voltage, the collector of triode can produce high level.
3. a kind of equipment according to claim 1 pick-up unit of uncapping, it is characterized in that: said photodiode all links to each other with the power supply of 3.3V with triode.
4. a kind of equipment according to claim 1 pick-up unit of uncapping is characterized in that: said load transfer module is to have pull-up resistor shunt load electric capacity to constitute.
5. according to any described a kind of equipment of the claim 1-4 pick-up unit of uncapping, it is characterized in that: be provided with current-limiting resistor voltage divider between said pull-up resistor and the triode.
6. according to any described a kind of equipment of the claim 1-4 pick-up unit of uncapping, it is characterized in that: being electrically connected between said triode and the terminal server CPU is provided with current-limiting resistance.
7. according to any described a kind of equipment of the claim 1-4 pick-up unit of uncapping, it is characterized in that: being electrically connected between said triode and the power supply is provided with current-limiting resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101489567A CN102650652A (en) | 2012-05-15 | 2012-05-15 | Equipment uncovering detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101489567A CN102650652A (en) | 2012-05-15 | 2012-05-15 | Equipment uncovering detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102650652A true CN102650652A (en) | 2012-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101489567A Pending CN102650652A (en) | 2012-05-15 | 2012-05-15 | Equipment uncovering detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102650652A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931818A (en) * | 2017-05-24 | 2018-12-04 | 南宁富桂精密工业有限公司 | Anti-dismantling arrangement for detecting |
| CN110196390A (en) * | 2019-06-28 | 2019-09-03 | 深圳市元征科技股份有限公司 | A kind of detection method and its relevant apparatus of circuit |
| CN113917210A (en) * | 2021-10-09 | 2022-01-11 | 广东电网有限责任公司 | Electricity stealing detection device and electric energy meter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0447615B1 (en) * | 1990-03-19 | 1995-02-08 | Landis & Gyr Technology Innovation AG | Appliance for monitoring housings of apparatus |
| CN1136666A (en) * | 1995-05-19 | 1996-11-27 | 甘肃工业大学科技开发公司 | Electric meter for anti-fraudulent use |
| CN2450006Y (en) * | 2000-10-10 | 2001-09-26 | 长春海拉车灯有限公司 | Intelligent light-sensitive lamp for vehicle |
| CN2577293Y (en) * | 2002-09-12 | 2003-10-01 | 章士奇 | Electronic ilegal-use-proofing long-distance alarm watt-hour meter |
| CN200986571Y (en) * | 2006-12-21 | 2007-12-05 | 武汉盛帆电子有限公司 | Device for transmitting electrical energy meter open detection signal |
| CN201863768U (en) * | 2010-05-05 | 2011-06-15 | 周逸泰 | Locomotive car light fault monitoring and warning system |
-
2012
- 2012-05-15 CN CN2012101489567A patent/CN102650652A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0447615B1 (en) * | 1990-03-19 | 1995-02-08 | Landis & Gyr Technology Innovation AG | Appliance for monitoring housings of apparatus |
| CN1136666A (en) * | 1995-05-19 | 1996-11-27 | 甘肃工业大学科技开发公司 | Electric meter for anti-fraudulent use |
| CN2450006Y (en) * | 2000-10-10 | 2001-09-26 | 长春海拉车灯有限公司 | Intelligent light-sensitive lamp for vehicle |
| CN2577293Y (en) * | 2002-09-12 | 2003-10-01 | 章士奇 | Electronic ilegal-use-proofing long-distance alarm watt-hour meter |
| CN200986571Y (en) * | 2006-12-21 | 2007-12-05 | 武汉盛帆电子有限公司 | Device for transmitting electrical energy meter open detection signal |
| CN201863768U (en) * | 2010-05-05 | 2011-06-15 | 周逸泰 | Locomotive car light fault monitoring and warning system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931818A (en) * | 2017-05-24 | 2018-12-04 | 南宁富桂精密工业有限公司 | Anti-dismantling arrangement for detecting |
| CN108931818B (en) * | 2017-05-24 | 2020-06-05 | 南宁富桂精密工业有限公司 | Anti-disassembly detecting device |
| CN110196390A (en) * | 2019-06-28 | 2019-09-03 | 深圳市元征科技股份有限公司 | A kind of detection method and its relevant apparatus of circuit |
| CN113917210A (en) * | 2021-10-09 | 2022-01-11 | 广东电网有限责任公司 | Electricity stealing detection device and electric energy meter |
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Application publication date: 20120829 |