CN201741254U - Key-forgotten reminding device - Google Patents
Key-forgotten reminding device Download PDFInfo
- Publication number
- CN201741254U CN201741254U CN2010202070260U CN201020207026U CN201741254U CN 201741254 U CN201741254 U CN 201741254U CN 2010202070260 U CN2010202070260 U CN 2010202070260U CN 201020207026 U CN201020207026 U CN 201020207026U CN 201741254 U CN201741254 U CN 201741254U
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- China
- Prior art keywords
- circuit
- key
- infrared
- alarm
- receiving circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a key-forgotten reminding device which belongs to the technical field of a photoelectric sensor and comprises a transmitting circuit and a receiving circuit, wherein the transmitting circuit comprises a first power supply circuit and an infrared transmitting circuit, and the first power supply circuit is used for supplying power to the infrared transmitting circuit; the receiving circuit comprises an infrared receiving circuit, a mono-stability timing circuit, a reminding device and a second power supply circuit; the second power supply circuit is respectively connected with the infrared receiving circuit, the mono-stability timing circuit and the reminding device; and the infrared receiving circuit is sequentially connected with the mono-stability timing circuit and the reminding device. The key-forgotten reminding device has infrared safety and reliability on pipes, cannot be interfered, has no mechanical nodes, and leads to long service life; as the transmitting circuit and the receiving circuit are separately installed, the key-forgotten reminding device is convenient to install; as the reminding can be carried out by sound and light at the same time, the key-forgotten reminding device has better effect.
Description
Technical field
The utility model relates to a kind of alarm set, belongs to the photoelectric sensor technical field.
Background technology
Key is left behind alarm set similar gizmo in the market, and the principle of design mainly is magnet controlled design, and the break-make by magnet comes control circuit to the sucking action of spring leaf reaches the effect of prompting then.It is a kind of mechanical hook-up that this key is left behind the alarm set reed of being hit by a bullet itself, and certain life-span is arranged, when long-time the use, and easy deformation, thus can control malfunctioning; When magnet occurring in the external world in addition, be easy to generate misoperation.
Summary of the invention
Goal of the invention:
The purpose of this utility model just is being based on the defective in the above background technology, and a kind of Key with alarm of leaving behind is provided.
Technical scheme:
In order to realize the foregoing invention purpose, the scheme that the utility model adopts is:
A kind of Key with alarm of leaving behind comprises radiating circuit and receiving circuit; Wherein radiating circuit comprises first power circuit and infrared transmitter, and first power circuit is used for powering to infrared transmitter; Receiving circuit comprises infrared radiation receiving circuit, mono-stable timing circuit, alarm set, second source circuit, wherein the second source circuit respectively with infrared radiation receiving circuit, mono-stable timing circuit, alarm set connects, and infrared radiation receiving circuit connects mono-stable timing circuit, alarm set successively.
Further, the Key with alarm of leaving behind of the present invention also comprises sound prompting circuit and light alert circuit.
Further, first power circuit of leaving behind Key with alarm of the present invention adopts the power supply of 3V button cell.
Further, the second source circuit of leaving behind Key with alarm of the present invention adopts the 9V dry cell power supply.
Further, the infrared transmitter of leaving behind Key with alarm of the present invention adopts infrared emission tube FS303A, and infrared radiation receiving circuit adopts infrared receiver tube PT5301A.
Beneficial effect:
1, infrared mutual-tube is safe and reliable, and interference-free, does not have mechanical node, and service time is long.
2, the circuit branch transmits and receives two parts installation, and is easy for installation.
3, sound and light are reminded simultaneously, and it is effective particularly eyesight and hearing not to be that good old man reminds.
Description of drawings
Fig. 1 is a structure principle chart of the present utility model.
Fig. 2 is a scheme of installation of the present utility model.
Specific embodiments:
Be described in further detail below in conjunction with the enforcement of accompanying drawing technical scheme:
As shown in Figure 1, comprise radiating circuit and receiving circuit; Wherein radiating circuit comprises first power circuit and infrared transmitter, and first power circuit is used for powering to infrared transmitter; Receiving circuit comprises infrared radiation receiving circuit, mono-stable timing circuit, alarm set, second source circuit, wherein the second source circuit respectively with infrared radiation receiving circuit, mono-stable timing circuit, alarm set connects, and infrared radiation receiving circuit connects mono-stable timing circuit, alarm set successively.Alarm set comprises sound prompting circuit and light alert circuit.The sound prompting circuit comprises a Music Clip, and the light alert circuit can be a light emitting diode.
Embodiment: radiating circuit part first power circuit adopts the power supply of 3V button cell, infrared transmitter adopts infrared emission tube FS303A, wherein current-limiting resistance is 1K, receiving circuit part second source circuit adopts the 9V dry cell, and infrared radiation receiving circuit adopts infrared receiver tube PT5301A.When door was shut, receiving tube PT5301A can receive signal, and the monostable circuit output low level is not worked; When door was opened, receiving tube PT5301A did not receive signal, gave trigger pip of monostable circuit, and monostable circuit provides high level driven for emitting lights diode and glimmers, the prompting of Music Clip prompting " please with good key ".
As shown in Figure 2, the Key with alarm of leaving behind of the present utility model has common cigarette case size, mainly containing infrared, receiving circuit and alert circuit forms, radiating circuit is installed in above the doorframe, receiving circuit is installed in above the door-plate, and infrared, receiving circuit are operated accordingly when the door open and close.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. leave behind Key with alarm for one kind, it is characterized in that: comprise radiating circuit and receiving circuit; Wherein radiating circuit comprises first power circuit and infrared transmitter, and first power circuit is used for powering to infrared transmitter; Receiving circuit comprises infrared radiation receiving circuit, mono-stable timing circuit, alarm set, second source circuit, wherein the second source circuit respectively with infrared radiation receiving circuit, mono-stable timing circuit, alarm set connects, and infrared radiation receiving circuit connects mono-stable timing circuit, alarm set successively.
2. the Key with alarm of leaving behind according to claim 1 is characterized in that: described alarm set comprises sound prompting circuit and light alert circuit.
3. the Key with alarm of leaving behind according to claim 1 is characterized in that: described first power circuit adopts the power supply of 3V button cell.
4. the Key with alarm of leaving behind according to claim 1 is characterized in that: described second source circuit adopts the 9V dry cell power supply.
5. the Key with alarm of leaving behind according to claim 1 is characterized in that: described infrared transmitter adopts infrared emission tube FS303A, and infrared radiation receiving circuit adopts infrared receiver tube PT5301A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202070260U CN201741254U (en) | 2010-05-28 | 2010-05-28 | Key-forgotten reminding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202070260U CN201741254U (en) | 2010-05-28 | 2010-05-28 | Key-forgotten reminding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201741254U true CN201741254U (en) | 2011-02-09 |
Family
ID=43556531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202070260U Expired - Fee Related CN201741254U (en) | 2010-05-28 | 2010-05-28 | Key-forgotten reminding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201741254U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436717A (en) * | 2011-10-10 | 2012-05-02 | 陕西科技大学 | Apparatus possessing function of intelligently prompting to carry key and realization method thereof |
| CN105809904A (en) * | 2016-05-10 | 2016-07-27 | 杨小平 | Object forgetting reminder on service window |
-
2010
- 2010-05-28 CN CN2010202070260U patent/CN201741254U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436717A (en) * | 2011-10-10 | 2012-05-02 | 陕西科技大学 | Apparatus possessing function of intelligently prompting to carry key and realization method thereof |
| CN102436717B (en) * | 2011-10-10 | 2013-08-14 | 陕西科技大学 | Apparatus possessing function of intelligently prompting to carry key and realization method thereof |
| CN105809904A (en) * | 2016-05-10 | 2016-07-27 | 杨小平 | Object forgetting reminder on service window |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20110528 |