CN203645678U - Apparatus for assessing infrared light interference intensity - Google Patents
Apparatus for assessing infrared light interference intensity Download PDFInfo
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- CN203645678U CN203645678U CN201320701312.6U CN201320701312U CN203645678U CN 203645678 U CN203645678 U CN 203645678U CN 201320701312 U CN201320701312 U CN 201320701312U CN 203645678 U CN203645678 U CN 203645678U
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- infrared
- infrared light
- light interference
- interference strength
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Abstract
The utility model provides an apparatus for assessing infrared light interference intensity. The apparatus for assessing infrared light interference intensity comprises an infrared sensing apparatus, an MCU processor and a display apparatus, wherein the MCU processor is electrically connected with the infrared sensing apparatus and the display apparatus; the infrared sensing apparatus is used for acquiring infrared optical signals; the MCU processor is used for counting interference times according to the infrared optical signals acquired by the infrared sensing apparatus; and the display apparatus is used for displaying the number of interference. The apparatus for assessing infrared light interference intensity can perform quantification tests on the intensity of infrared interference, has a wide application scope, and provides evidence to various problems in infrared remote control communication.
Description
Technical field
The utility model relates to infrared detection field, relates in particular to a kind of device of assessing infrared light interference strength.
Background technology
Infrared light communication applications is very extensive at present, on the household electrical appliances such as air-conditioning, TV, all there is use infrared remote control system, its principle is exactly that remote controller sends several ms to hundreds of ms length infrared lights, the receiving system of air-conditioning, TV inside carries out filtering, decoding, analysis, execution to signal after receiving infrared light, has realized like this far distance controlled to air-conditioning, TV.These infrared remote control systems tend to be subject to the interference of other infrared sources in actual use, and as sunlight, electronic energy-saving lamp, infrared monitoring alarm etc., once infrared remote control system is interfered, household appliances will cannot operate completely.After-sale service personnel often adopt the method for changing corresponding parts in the time of maintenance, cannot fundamentally solve interference problem.
Utility model content
In view of the present situation of prior art, the purpose of this utility model is to provide a kind of device of assessing infrared light interference strength, and the intensity that infrared light is disturbed quantizes test.For achieving the above object, the technical solution of the utility model is as follows:
Assess a device for infrared light interference strength, comprise infrared sensing device, MCU processor and display unit, described MCU processor is electrically connected with described infrared sensing device and described display unit respectively;
Described infrared sensing device is used for adopting infrared signal; Described MCU processor calculates and disturbs number of times for the infrared signal gathering according to described infrared sensing device; Described display unit is used for showing described interference number of times.
More preferably, described MCU processor comprises master chip, crystal oscillating circuit, reset circuit, display driver circuit and infrared sensing receiving circuit, and described master chip is electrically connected with described crystal oscillating circuit, reset circuit, display driver circuit and infrared sensing receiving circuit respectively.
More preferably, the model of described master chip is Atemga16L-8PU.
More preferably, described display unit is charactron.
Further, the quantity of described charactron is two, and described in one of them, charactron shows the numerical value on a position, and described in another, charactron shows the numerical value on ten.
More preferably, described MCU processor also comprises for the power supply rectification filter circuit to described master chip power supply.
More preferably, described infrared sensing device is infrared sensor.
The beneficial effects of the utility model are:
The device of assessment infrared light interference strength of the present utility model, the intensity that infrared light is disturbed quantizes test, and it is applied widely, provides foundation for solving the variety of issue occurring in infrared transmission by remote control.
Brief description of the drawings
Fig. 1 is the block diagram of device one embodiment of assessment infrared light interference strength of the present utility model;
Fig. 2 is the pin schematic diagram of master chip shown in Fig. 1;
Fig. 3 is the schematic diagram of infrared sensing receiving circuit shown in Fig. 1;
Fig. 4 is the schematic diagram of power supply rectification filter circuit shown in Fig. 1;
Fig. 5 is the schematic diagram of crystal oscillating circuit shown in Fig. 1;
Fig. 6 is the schematic diagram of reset circuit shown in Fig. 1;
Fig. 7 is the schematic diagram of display driver circuit shown in Fig. 1.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the device of assessment infrared light interference strength of the present utility model is further elaborated.Should be appreciated that specific embodiment described herein is only for explaining the utility model, and be not used in restriction the utility model.
Referring to figs. 1 through Fig. 7, device one embodiment of assessment infrared light interference strength of the present utility model comprises infrared sensing device, MCU processor and display unit; MCU processor is electrically connected with infrared sensing device and display unit respectively, wherein, infrared sensing device is used for adopting infrared signal, and MCU processor calculates and disturbs number of times for the infrared signal gathering according to infrared sensing device, and display unit is used for showing described interference number of times.MCU processor is single-chip microcomputer, (Micro Controller Unit is called for short MCU, and Chinese is multipoint control unit), the preferred charactron of display unit.
MCU processor comprises master chip 100, crystal oscillating circuit 103, reset circuit 104, display driver circuit 105 and infrared sensing receiving circuit 101, and master chip 100 is electrically connected with crystal oscillating circuit 103, reset circuit 104, display driver circuit 105 and infrared sensing receiving circuit 101 respectively.The model of master chip 100 is Atemga16L-8PU, the the 1st to the 3rd pin of master chip 100 connects respectively D1, D2 and the D3 pin of the TD65783 chip of display driver circuit 105, TD65783 chip is for driving the negative electrode of charactron DS1 and charactron DS2, the anode of charactron DS1 and charactron DS2 is driven by chip ULN2003, the output of chip ULN2003 connects the anode of charactron DS1 and charactron DS2, and the input of chip ULN2003 connects the 34th to the 40th pin of master chip 100.
The 10th pin, the 30th pin and the 32nd pin of master chip 100 are as power pins, and the 10th pin, the 30th pin and the 32nd pin series-connection power supplies current rectifying and wave filtering circuit 102 are connected to external power.Wherein, the output voltage of power supply rectification filter circuit 102 is direct current 5V.
The 11st pin of master chip 100 and the 31st pin ground connection, the 12nd pin of master chip 100 is connected crystal oscillating circuit 103 with the 13rd pin, and crystal oscillating circuit 103 comprises crystal oscillator Y1, capacitor C X1 and capacitor C X2.
The 9th pin of master chip 100 connects reset circuit 104, and reset circuit 104 comprises resistance R 4 and diode IN4148.
The 14th pin of master chip 100 is connected infrared sensing receiving circuit 101 with the 16th pin, the infrared signal that infrared sensing receiving circuit 101 receives for transmitting infrared sensing device, infrared sensing device is infrared sensor, and the infrared sensing device in Fig. 3 is infrared receiving terminal.
The device course of work of above-mentioned assessment infrared light interference strength comprises the steps:
S1, infrared sensing device gathers all infrared signals in its place environment, convert described infrared signal to electric impulse signal according to the parameter of infrared remote control system, and described electric impulse signal is sent to MCU processor, infrared sensing device is sent to master chip 100 by infrared sensing receiving circuit 101 by electric impulse signal; Wherein, described parameter comprises frequency and/or the pulse that infrared remote control system uses;
S2, MCU processor judges the level height of the electric impulse signal that infrared sensing device sends over, the level height of electric impulse signal and predetermined level height are compared, if the level height of electric impulse signal is lower than predetermined level height, be judged as disturbing pulse, enter step S3, otherwise, do not deal with as normal signal; Wherein, the height of described predetermined level is 4.5V;
S3, calculates the length of described disturbing pulse, calculates interference number of times, and show described interference number of times according to the length gauge of described disturbing pulse.
In step S3, disturb times N=disturbing pulse length/10ms, wherein, the unit of disturbing pulse length is ms, N round numbers, the fractional part of not enough integer is by integer calculations.Such as a pulse length is 34ms, although a just pulse can be counted as 4 interference according to length gauge.Can calculate according to above analysis and processing method the intensity that infrared light disturbs, unit is time/second.Such as having a pulse signal and length to be less than 10ms in the second, interference strength is 1; If an interference length is 500ms, interference strength, for being calculated as 50 (very strong), has completely likely been disturbed normal infrared remote-controlled signal.
In step S3, display unit 106 shows that described interference number of times adopts two digits to represent, numerical value from 00 to 99, and numerical value is lower, and interference strength is lower, otherwise disturbs stronger.Display unit 106 can adopt two charactrons to show, charactron DS2 shows the numerical value on a position, the numerical value of charactron DS1 on showing ten.
Display unit 106 shows that described numerical value is to represent noiselessly at 00 o'clock, and infrared remote control system can normally be worked; Show that the scope of described numerical value, in the time of 01-05, indicates slight interference, infrared remote control system occasional is malfunctioning, and receiving system is no reaction once in a while; Show that the scope of described numerical value is in the time of 06-50, represent that interference is larger, infrared remote control system often can be malfunctioning, and receiving system is difficult to receive correct signal; Show that the scope of described numerical value is in the time of 51-99, represent that interference is very large, infrared remote control system is completely malfunctioning, and receiving system is no reaction completely.
The device of the assessment infrared light interference strength of more than implementing, after device powers on, infrared sensor gathers all infrared signals in the environment of current place automatically, convert infrared signal to electric impulse signal according to the characteristic of infrared transmission by remote control, the MCU master chip that device uses is Atemga16L-8PU, the pulse signal that this chip is brought transducer according to above-mentioned algorithm carries out analytic statistics, and analysis result is outputed on charactron and intuitively shown, analysis result represents by two digits the number of times that current infrared light disturbs.Show that data are the real-time testing result of environment, user of service shows the infrared light interference strength of known current device position according to numerical value.It is applied widely, provides foundation for solving the variety of issue occurring in infrared transmission by remote control.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (7)
1. a device of assessing infrared light interference strength, is characterized in that, comprising:
Infrared sensing device, for adopting infrared signal;
MCU processor, calculates and disturbs number of times for the infrared signal gathering according to described infrared sensing device;
And display unit, for showing described interference number of times;
Described MCU processor is electrically connected with described infrared sensing device and described display unit respectively.
2. the device of assessment infrared light interference strength according to claim 1, is characterized in that:
Described MCU processor comprises master chip, crystal oscillating circuit, reset circuit, display driver circuit and infrared sensing receiving circuit, and described master chip is electrically connected with described crystal oscillating circuit, reset circuit, display driver circuit and infrared sensing receiving circuit respectively.
3. the device of assessment infrared light interference strength according to claim 2, is characterized in that:
The model of described master chip is Atemga16L-8PU.
4. the device of assessment infrared light interference strength according to claim 1, is characterized in that:
Described display unit is charactron.
5. the device of assessment infrared light interference strength according to claim 4, is characterized in that:
The quantity of described charactron is two, and described in one of them, charactron shows the numerical value on a position, and described in another, charactron shows the numerical value on ten.
6. the device of assessment infrared light interference strength according to claim 2, is characterized in that:
Described MCU processor also comprises for the power supply rectification filter circuit to described master chip power supply.
7. according to the device of the assessment infrared light interference strength described in claim 1-6 any one, it is characterized in that:
Described infrared sensing device is infrared sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701312.6U CN203645678U (en) | 2013-11-07 | 2013-11-07 | Apparatus for assessing infrared light interference intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701312.6U CN203645678U (en) | 2013-11-07 | 2013-11-07 | Apparatus for assessing infrared light interference intensity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203645678U true CN203645678U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320701312.6U Expired - Fee Related CN203645678U (en) | 2013-11-07 | 2013-11-07 | Apparatus for assessing infrared light interference intensity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203645678U (en) |
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2013
- 2013-11-07 CN CN201320701312.6U patent/CN203645678U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20211107 |