CN203849744U - Intelligent heating device for fingerprint and palmprint acquisition device - Google Patents
Intelligent heating device for fingerprint and palmprint acquisition device Download PDFInfo
- Publication number
- CN203849744U CN203849744U CN201420248562.3U CN201420248562U CN203849744U CN 203849744 U CN203849744 U CN 203849744U CN 201420248562 U CN201420248562 U CN 201420248562U CN 203849744 U CN203849744 U CN 203849744U
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- heating film
- electric radiant
- radiant heating
- fingerprint
- acquisition instrument
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Abstract
The utility model discloses an intelligent heating device for a fingerprint and palmprint acquisition device. A power supply is used for providing power. The fingerprint and palmprint acquisition device comprises a triangular prism; and the triangular prism comprises a light passing face and two non-light passing faces. The device comprises an electric heating film; the electric heating film is arranged on the light passing face; and the electric heating film is connected with the power supply. According to the intelligent heating device for the fingerprint and palmprint acquisition device, the triangular prism used for acquisition by the acquisition device can be sure of being at the constant temperature equal with the temperature of a human body, the problem of difficult acquisition of dried fingerprint and palmprint generated due to temperature difference between the fingers and the palm and the prism can be effectively eliminated, the power is low, the heating efficiency is high, and noise and pollution do not exist.
Description
Technical field
The utility model relates to technical field of biometric identification, refers in particular to a kind of fingerprint, palmmprint Acquisition Instrument intelligent heater.
Background technology
Along with the development of biological identification technology, fingerprint, palmmprint Acquisition Instrument are more and more wider in the application of safety-security area, and the most ripe as technology in the world, range of application biological recognition product the most widely, must tackle the different local weathers in the whole world, wherein just comprise sombrely humidity, the weather conditions that severe cold etc. are extreme.Under these extreme weather conditions, due to reasons such as temperature are low, high humidity, in the time carrying out fingerprint, palmmprint collection, because the temperature on optical prism surface is lower than the temperature of human body, produce temperature difference, in the time that finger, palm contact with prism, because prism surface temperature is lower than the temperature of human body, the skin of finger, palm easily shrinks, directly cause picking rate, effect and quality degradation to dry finger, dry palm, under extreme condition, even possibly cannot normally gather.In addition, because prism surface and human body have temperature difference, easily produce fog when collection, this can affect effect and the quality of collection.Therefore be very feasible, a necessary function to the heating of prism surface.
Method to prism heating has a lot, for example PTC thermistor heating, prism surface Resistant heating, common Resistant heating etc.But all defectiveness of these type of heating.The temperature of PTC thermistor can be very high, easily causes prism to be heated inhomogeneous; Prism surface Resistant heating can, at the picture that gathers the silk that have a resistance in image, have a strong impact on collection image quality and discrimination; Hair dryer is that to add thermal noise large, and efficiency is low.
China Patent Publication No. CN201917923U, in open day on August 3rd, 2011, name is called in the utility model patent of " palm print instrument defogging system " and discloses a kind of palm print instrument defogging system, comprises heating plate, conducting strip, electron temperature detect switch, power supply; Described conducting strip is attached on the face of the obstructed light of prism, and heating plate is fixed on conducting strip; Electron temperature detect switch is fixed on the position of adjacent prisms upper surface, and is communicated with power supply and heating plate by electron temperature detect switch.Weak point is, this demister system need to heat to prism with heating plate and conducting strip, and the process of heating is comparatively complicated, and the temperature of heating can not control, and can not reach desirable effect.
Utility model content
The purpose of this utility model is to overcome in prior art fingerprint, palmmprint Acquisition Instrument heating means lessly, and the shortcoming that efficiency is lower, provides a kind of fingerprint, palmmprint Acquisition Instrument intelligent heater, and this unit temp is controlled, and heating effect is better.
The purpose of this utility model is to be achieved by following technical proposals:
A kind of fingerprint, palmmprint Acquisition Instrument intelligent heater, by Power supply, fingerprint, palmmprint Acquisition Instrument comprise prism, and prism comprises collection face and non-logical light face, and device also comprises that Electric radiant Heating Film, Electric radiant Heating Film are arranged on the non-logical light face of prism, and Electric radiant Heating Film is connected with power supply.Using the advantage of Electric radiant Heating Film is in the time that power is constant, and the maximum temperature of Electric radiant Heating Film is also constant, and the larger corresponding Electric radiant Heating Film maximum temperature of power is also higher.That is to say in the time that certain power A powers to Electric radiant Heating Film, the maximum temperature of Electric radiant Heating Film is constant is A ', in the time that certain power B powers to Electric radiant Heating Film, the maximum temperature of Electric radiant Heating Film is also constant in B ', in the time of power A< power B, under equivalent environment, temperature A ' <B '.So related personnel powers to Electric radiant Heating Film by setting certain power, Electric radiant Heating Film continues to prism heating, and when being heated to after human body temperature, the temperature of prism no longer rises, and has ensured that the temperature of prism and the temperature of human body equate.
As a kind of preferred version, fingerprint, palmmprint Acquisition Instrument intelligent heater also comprise thermistor, and thermistor is arranged between Electric radiant Heating Film and power supply.The effect of thermistor is the output power that regulates Electric radiant Heating Film, and the maximum temperature of Electric radiant Heating Film is changed with environmental change with environment temperature, thereby the temperature constant that ensures prism is at 35 ± 3 DEG C, to meet different environment temperatures.
As a kind of preferred version, Electric radiant Heating Film is also arranged on prism collection face.Under non-acquisition state, Electric radiant Heating Film is arranged on to prism and gathers face, can play heating and dustproof double action, in the time gathering, take off Electric radiant Heating Film.
As a kind of preferred version, Electric radiant Heating Film is PET Electric radiant Heating Film, imines film Electric radiant Heating Film, silica-gel electrothermic film, mica Electric radiant Heating Film or carbon back Electric radiant Heating Film.
As a kind of preferred version, Electric radiant Heating Film outer is provided with frame, and frame is fixedly connected with Electric radiant Heating Film, and frame is also fixedly connected with fingerprint, palmmprint Acquisition Instrument body.The effect of frame is to make preferably Electric radiant Heating Film and prism fix, and prism can also be fixedly connected with fingerprint, palmmprint Acquisition Instrument preferably by frame simultaneously, prevents normally use of the loosening impact of the rear generation of the long-time use of prism.
As a kind of preferred version, fingerprint, palmmprint Acquisition Instrument intelligent heater also comprise MCU, MCU is connected with thermistor, and MCU is also connected with wireless signal transmitting module, and wireless signal transmitting module is connected by wireless with long-range reception of wireless signals module.MCU can monitor the use state of heating arrangement, once MCU detects thermistor and lost efficacy, show that heating film can not keep steady temperature, now, MCU sends a signal to wireless signal transmitting module, wireless signal transmitting module is connected with long-range reception of wireless signals module, and remote terminal can recognize that Electric radiant Heating Film breaks down and takes corresponding measure in time.
The beneficial effects of the utility model are, fingerprint, palmmprint Acquisition Instrument intelligent heater can make the prism of Acquisition Instrument collection use maintain the steady temperature equating with human body temperature, do not affecting under the prerequisite of collection image quality, can effectively eliminate because the temperature difference of finger, palm and prism produces dryness fingerprint, palmmprint gathers difficult problem, and power is low, heating efficiency is high, noiselessness, pollution-free.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is another kind of structural representation of the present utility model;
Fig. 4 is a kind of circuit theory connection layout of the present utility model.
Wherein: 1, prism, 2, power supply, 3, Electric radiant Heating Film, 4, thermistor, 5, frame, 6, MCU, 7, wireless signal transmission unit, 8, reception of wireless signals unit.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment 1: a kind of fingerprint, palmmprint Acquisition Instrument intelligent heater, its structural representation as shown in Figure 1 and Figure 2, powered by power supply 2, fingerprint, palmmprint Acquisition Instrument comprise prism 1, it is characterized in that, device comprises Electric radiant Heating Film 3, and Electric radiant Heating Film is arranged on collection face and non-logical light face, and Electric radiant Heating Film is connected with power supply.Electric radiant Heating Film is PET Electric radiant Heating Film.Electric radiant Heating Film outer is provided with frame 5, and frame is fixedly connected with Electric radiant Heating Film, and frame is also fixedly connected with fingerprint, palmmprint Acquisition Instrument body.
Related personnel powers to Electric radiant Heating Film by setting certain power, and Electric radiant Heating Film continues to prism heating, and when being heated to after human body temperature, the temperature of prism no longer rises, and has ensured that the temperature of prism and the temperature of human body equate.
Embodiment 2: a kind of fingerprint, palmmprint Acquisition Instrument intelligent heater, its structure and implementation method are substantially the same manner as Example 1, and difference as shown in Figure 3, Figure 4, also comprises thermistor 4 and MCU6, and thermistor is arranged between Electric radiant Heating Film and power supply.MCU is connected with thermistor, and MCU is also connected with wireless signal transmitting module 7, and wireless signal transmitting module is connected by wireless with long-range reception of wireless signals module 8.MCU can monitor the use state of heating arrangement, once MCU detects thermistor and lost efficacy, show that heating film can not keep steady temperature, now, MCU sends a signal to wireless signal transmitting module, wireless signal transmitting module is connected with long-range reception of wireless signals module, and remote terminal can recognize that Electric radiant Heating Film breaks down and takes corresponding measure in time.
Claims (6)
1. fingerprint, a palmmprint Acquisition Instrument intelligent heater, by Power supply, fingerprint, palmmprint Acquisition Instrument comprise prism, prism comprises collection face and non-logical light face, it is characterized in that, device comprises Electric radiant Heating Film, Electric radiant Heating Film is arranged on non-logical light face, and Electric radiant Heating Film is connected with power supply.
2. a kind of fingerprint according to claim 1, palmmprint Acquisition Instrument intelligent heater, is characterized in that, also comprises that thermistor, thermistor are arranged between Electric radiant Heating Film and power supply.
3. a kind of fingerprint according to claim 2, palmmprint Acquisition Instrument intelligent heater, is characterized in that, described Electric radiant Heating Film is also arranged on prism collection face.
4. a kind of fingerprint according to claim 1, palmmprint Acquisition Instrument intelligent heater, is characterized in that, described Electric radiant Heating Film is PET Electric radiant Heating Film, imines film Electric radiant Heating Film, silica-gel electrothermic film, mica Electric radiant Heating Film or carbon back Electric radiant Heating Film.
5. according to a kind of fingerprint described in claim 1 or 2 or 3 or 4, palmmprint Acquisition Instrument intelligent heater, it is characterized in that, described Electric radiant Heating Film outer is provided with frame, and frame is fixedly connected with Electric radiant Heating Film, and frame is also fixedly connected with fingerprint, palmmprint Acquisition Instrument body.
6. a kind of fingerprint according to claim 2, palmmprint Acquisition Instrument intelligent heater, it is characterized in that, also comprise MCU, MCU is connected with thermistor, MCU is also connected with wireless signal transmitting module, and wireless signal transmitting module is connected by wireless with long-range reception of wireless signals module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420248562.3U CN203849744U (en) | 2014-05-15 | 2014-05-15 | Intelligent heating device for fingerprint and palmprint acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420248562.3U CN203849744U (en) | 2014-05-15 | 2014-05-15 | Intelligent heating device for fingerprint and palmprint acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203849744U true CN203849744U (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420248562.3U Expired - Fee Related CN203849744U (en) | 2014-05-15 | 2014-05-15 | Intelligent heating device for fingerprint and palmprint acquisition device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203849744U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108121383A (en) * | 2016-11-29 | 2018-06-05 | 长春方圆光电技术有限责任公司 | A kind of palm fingerprint instrument self-heating temperature-controlling system |
| CN108150012A (en) * | 2017-12-25 | 2018-06-12 | 浙江然鹏电子有限公司 | A kind of fingerprint gate lock |
| CN108229255A (en) * | 2016-12-21 | 2018-06-29 | 江苏迪康姆生物技术有限公司 | A kind of palmmprint acquires all-in-one machine |
| CN109460741A (en) * | 2018-11-16 | 2019-03-12 | 青岛奥美克生物信息科技有限公司 | Biometric image quality modifying apparatus |
| CN112113550A (en) * | 2020-10-16 | 2020-12-22 | 中铁上海设计院集团有限公司 | Intelligent magnetic suspension power multi-state measuring prism and application method thereof |
-
2014
- 2014-05-15 CN CN201420248562.3U patent/CN203849744U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108121383A (en) * | 2016-11-29 | 2018-06-05 | 长春方圆光电技术有限责任公司 | A kind of palm fingerprint instrument self-heating temperature-controlling system |
| CN108229255A (en) * | 2016-12-21 | 2018-06-29 | 江苏迪康姆生物技术有限公司 | A kind of palmmprint acquires all-in-one machine |
| CN108150012A (en) * | 2017-12-25 | 2018-06-12 | 浙江然鹏电子有限公司 | A kind of fingerprint gate lock |
| CN109460741A (en) * | 2018-11-16 | 2019-03-12 | 青岛奥美克生物信息科技有限公司 | Biometric image quality modifying apparatus |
| CN109460741B (en) * | 2018-11-16 | 2024-01-23 | 青岛奥美克生物信息科技有限公司 | Biological recognition image quality improving device |
| CN112113550A (en) * | 2020-10-16 | 2020-12-22 | 中铁上海设计院集团有限公司 | Intelligent magnetic suspension power multi-state measuring prism and application method thereof |
| CN112113550B (en) * | 2020-10-16 | 2023-08-15 | 中铁上海设计院集团有限公司 | Intelligent magnetic floating force polymorphism measuring prism and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20200515 |
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| CF01 | Termination of patent right due to non-payment of annual fee |