CN108693565A - Infra-red ray detection device - Google Patents
Infra-red ray detection device Download PDFInfo
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- CN108693565A CN108693565A CN201810308838.5A CN201810308838A CN108693565A CN 108693565 A CN108693565 A CN 108693565A CN 201810308838 A CN201810308838 A CN 201810308838A CN 108693565 A CN108693565 A CN 108693565A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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Abstract
The infra-red ray detection device of the infrared ray of measured object can be detected if even if purpose of this disclosure is to provide one kind there are multiple measured objects or in the case where being measured object movement.The disclosure is configured to:Have:Infrared sensor (3) detects the infrared ray for being measured object (2);And scanner section (4), rotation sweep is carried out to infrared sensor (3) on (D1) and the other direction (D2) opposite with one direction (D1) in one direction, infrared sensor (3) to a direction (D1) when rotating, often the 1st angle (θ 1) of rotation carries out the detection of infrared ray, when being rotated to other direction (D2), often the 2nd angle (θ 2) of rotation carries out the detection of infrared ray, and the 2nd angle (θ 2) is bigger than the 1st angle (θ 1).
Description
Technical field
The present invention relates to the infra-red ray detection devices that detection is measured the infrared ray of object.
Background technology
Previous infra-red ray detection device drives infra-red ray detection device to the position that heat source is determined to judge whether to be
Human body.(document 1:Japan's patent the 5240271st)
Invention content
The subject that the invention solves
However, in above-mentioned previous infra-red ray detection device, there are multiple measured objects or in quilt
In the case that measurement object moves, there are problems that being unable to fully reply.
Present invention aim to address the above problems, though provide one kind there are multiple measured objects or
In the case where measured object moves, the infra-red ray detection device of the infrared ray of measured object can be also detected.
A technical solution to solve project
In order to solve the above problems, the present invention is configured to:Have:Infrared sensor detects and is measured the infrared of object
Line;And scanner section, in one direction and on the other direction opposite with one direction to the infrared sensor into
Row rotation sweep, the infrared sensor often rotate the inspection that the 1st angle carries out infrared ray when being rotated to one direction
It surveys, when being rotated to the other direction, often rotates the detection that the 2nd angle carries out infrared ray, the 2nd angle is than the described 1st
Angle is big.
Invention effect
Even if the infra-red ray detection device of the present invention is there are multiple measured objects or in measured object
In the case of movement, the infrared ray of measured object can be also detected.
Description of the drawings
Fig. 1 is the block diagram of the structure for the infra-red ray detection device for showing embodiment 1.
Fig. 2 is the figure for the appearance for showing infra-red ray detection device ibid.
Fig. 3 is the figure that the infrared sensor in the infra-red ray detection device shown ibid is rotated to a direction.
Fig. 4 is the figure for showing infrared sensor ibid and being rotated to other direction.
Fig. 5 is the block diagram of the structure for the infra-red ray detection device for showing embodiment 2.
Fig. 6 is the block diagram of the structure for the infra-red ray detection device for showing embodiment 3.
Fig. 7 is the block diagram of the structure for the infra-red ray detection device for showing embodiment 4.
Fig. 8 is the figure that the infrared sensor in the infra-red ray detection device shown ibid is rotated to a direction.
Fig. 9 is the figure for showing infrared sensor ibid and being rotated to other direction.
Figure 10 is the figure for showing infrared sensor ibid and being rotated to other direction.
Specific implementation mode
(embodiment 1)
Hereinafter, being illustrated to the infra-red ray detection device 1 in embodiment 1 using attached drawing.
Fig. 1 is the block diagram of the structure for the infra-red ray detection device 1 for showing embodiment 1.Fig. 2 is to show that infrared detection fills
Set the figure of 1 appearance.Fig. 3 is the figure for showing the infrared sensor 3 of infra-red ray detection device 1 and being rotated to a direction D1.Fig. 4
It is the figure for showing infrared sensor and being rotated to other direction D2.
The infra-red ray detection device 1 of embodiment 1 has:Infrared sensor 3 is detected and is tested from the people etc. as heat source
The infrared ray that amount body 2 (measured object) is sent out;Scanner section 4 carries out rotation sweep to infrared sensor 3;Processing unit 5, place
Manage the output of infrared sensor 3;And control unit 6, control scanner section 4.The signal handled by processing unit 5 is output to application
The electronic equipment 7 of infra-red ray detection device 1.
Infrared sensor 3 has the thermal infrared detector for having buried temperature-sensitive portion.Infrared sensor 3 is in temperature-sensitive portion
Heat to electricity conversion portion of the middle use comprising thermoelectric pile, the thermal energy which generates the infrared ray radiated from measured body 2
Be converted to electric energy.In addition, in infrared sensor 3, the MOS with temperature-sensitive portion and the output voltage for taking out temperature-sensitive portion
A × b the pixel portion (non-contact infrared detecting element) of transistor is configured to a in a surface side of semiconductor substrate
The two-dimensional array shape of row b row.In the infrared sensor 3 of present embodiment, pixel portion is configured to 8 × 8.In addition, pixel portion
Arrangement be not limited to 8 × 8, for example, it is also possible to be configured to 16 × 4.
Scanner section 4 has the motors such as stepper motor, by the rotation of motor, makes infrared sensor 3 around axis a side
It is rotated on D1 (being counterclockwise in fig. 2) and the other direction D2 opposite with a direction D1 (being clockwise in fig. 2).
The retainer (not shown) for the rotation for stopping infrared sensor 3 is equipped in scanner section 4, what infrared sensor 3 can rotate
Maximum maximum rotation angle is 120 °.When infrared sensor 3 is rotated with the maximum rotation angle, start round about
Rotation.The maximum rotation angle is not limited to 120 °, can also be suitably changed according to the usage of infrared sensor 3.
When making infrared sensor 3 rotate on D1 in one direction, rotation sweep portion 4 makes it often rotate the 1st angle, θ 1,
Then temporarily cease the rotation of infrared sensor 3.Infrared sensor 3 carries out the detection of infrared ray during temporarily ceasing.
That is in the case that infrared sensor 3 rotates on D1 in one direction, the 1st angle, θ 1 is often rotated, then carries out infrared ray
Detection.In addition, when making infrared sensor 3 be rotated on other direction D2, scanner section 4 makes it often rotate the 2nd angle, θ 2, then
Temporarily cease the rotation of infrared sensor 3.Infrared sensor 3 carries out the detection of infrared ray during temporarily ceasing.Also
It is to say, infrared sensor 3 often rotates the 2nd angle, θ 2, then carry out the inspection of infrared ray in the case where being rotated on other direction D2
It surveys.In one direction under the either case on D1 the case where rotation and the case where being rotated on other direction D2, infrared ray sensing
Device 3 carries out the detection (measurement) of multiple infrared ray during temporarily ceasing.That is, infrared sensor 3 often rotates the 1st jiao
θ 1 is spent, then repeatedly measures infrared ray, often rotates the 2nd angle, θ 2, then repeatedly measures infrared ray.In the present embodiment, infrared ray
The number that sensor 3 often rotates the measurement of the infrared ray of the 1st angle, θ 1 progress often rotates the 2nd angle, θ 2 than infrared sensor 3
The number of the measurement of the infrared ray of progress is few.That is, for infrared sensor 3 when the detection of infrared ray is spent
Between, time when infrared sensor 3 is rotated to other direction D2 is longer than to a time when direction D1 rotation.
1st angle, θ, 1 to the 2 angle, θ 2 is small.In the present embodiment, the 1st angle, θ 1 is 5 °, and the 2nd angle, θ 2 is 60 °.This
Outside, the 1st angle, θ 1, the 2nd angle, θ 2 are without being limited thereto, can be suitably changed according to the purposes of infra-red ray detection device 1.In this way,
The structure big by being set as 2 to the 1 angle, θ 1 of the 2nd angle, θ, compared with when infrared sensor 3 is rotated to a direction D1, when
When being rotated to other direction D2, infrared sensor 3 can be made to be rotated up to rotation angle earlier.
In the case where infrared sensor 3 is rotated to a direction D1, when terminating maximum rotation angle rotation, processing
Whole thermal images that infrared sensor 3 is obtained into a direction D1 rotary course are added by portion 5.Thereby, it is possible to
High-resolution thermal image is generated, the accuracy of detection of the temperature of measured body 2 is improved.
On the other hand, in the case where infrared sensor 3 is rotated to other direction D2, the 2nd angle, θ 2 is often rotated, then is located
Reason portion 5 carries out the processing for the thermal image that infrared sensor 3 obtains.That is, in infrared sensor 3 to other direction D2
In the case of rotation, the addition of thermal image is carried out when being rotated to a direction D1 unlike infrared sensor 3, but red
When outside line sensor 3 obtains thermal image every time, processing unit 5 handles the output (thermal image) of infrared sensor 3.By
This can detect the activity of measured body 2 when being rotated to other direction D2.
In this way, when infrared sensor 3 is rotated to a direction D1, infra-red ray detection device 1 obtains high-resolution
Thermal image simultaneously accurately detects the temperature for being measured body 2.In addition, when infrared sensor 3 is rotated to other direction D2, it is red
The activity of the measured body 2 of the thermal image more rough when used than being rotated to a direction D1 of outer line detector 1
Detection.Due to not needing high-resolution thermal image when infrared sensor 3 is rotated to other direction D2, by making
2nd angle, θ, 2 to the 1 angle, θ 1 is big, can shorten rotational time of the infrared sensor 3 to other direction D2.Thereby, it is possible to
The high-precision temperature detection for being measured body 2 and the detection of activity both detections are carried out in a short time.
Detection due to the high-precision temperature that can carry out being measured body 2 and the detection of activity both detections, because
Even if this is with multiple measured body 2 as heat source, or in the case where measured body 2 moves, infrared ray
Detection device 1 can also be measured the temperature of body 2 into line trace and detecting.
(embodiment 2)
Hereinafter, the infra-red ray detection device 11 to embodiment 2 illustrates.
Fig. 5 is the block diagram of the infra-red ray detection device 11 of embodiment 2.
The infra-red ray detection device 11 of embodiment 2 has:Infrared sensor 3 is detected from the measured 2 (quilt of body such as people
Measurement object) infrared ray that sends out;Scanner section 4 carries out rotation sweep to infrared sensor 3;Processing unit 5 handles infrared ray
The output of sensor 3;Control unit 6 controls scanner section 4;And temperature sensor 12, detect the environment temperature of infrared sensor 3
Degree.Scanner section 4 is made it be rotated with the 1st angle, θ 1, makes infrared ray when making infrared sensor 3 be rotated to a direction D1
When sensor 3 is rotated to other direction D2, make it to be rotated than 1 the 2nd big angle, θ 2 of the 1st angle, θ.
Temperature sensor 12 uses thermistor.In addition, if the environment temperature of infrared sensor 3 can be detected, temperature
Degree sensor 12 can also use other sensors.
By the output of temperature sensor 12, control unit 6, which changes scanner section 4, makes infrared sensor 3 to a direction D1
The 1st angle, θ 1 under rotational case.In the infrared sensor 3 of embodiment 2, when environment temperature is 20 DEG C, the 1st angle
θ 1 is 5 °.The environment temperature of infrared sensor 3 often rises 1 DEG C, and the 1st angle, θ 1 is reduced 0.5 ° by control unit 6.Environment temperature is got over
Height, the temperature for being measured body 2 and background is closer, and the accuracy of detection of temperature is lower.But pass through the rising according to environment temperature
And reducing the 1st angle, θ 1, the thermal image that infrared sensor 3 obtains when being rotated to a direction D1 becomes higher resolution.By
This, the time spent in making infrared sensor 3 be rotated to a direction D1, is elongated, but compared with embodiment 1, is measured body 2
The accuracy of detection of temperature improve.Therefore, the accuracy of detection of infrared sensor 3 improves.In addition, when environment temperature becomes
At 28 DEG C, the 1st angle, θ 1 becomes 1 °, even if environment temperature is further up, control unit 6 will not make the 1st angle, θ 1 from 1 °
Variation.In this way, the limits value by presetting the 1st angle, θ 1, can prevent the 1st angle, θ 1 from becoming too small, and to one
Direction D1 rotational times terrifically become long.
In addition, the 1st angle, θ 1 when variation of ambient temperature can suitably change according to the purposes of infra-red ray detection device 11
Become.
In addition, in embodiment 2, although in addition detecting the ring of infrared sensor 3 provided with temperature sensor 12
Border temperature, but the ambient temperature of thermal image that obtains of can also be rotated to a direction D1 according to infrared sensor 3 when is examined
Survey the environment temperature of infrared sensor 3.In this way, by detecting environment temperature according to the output of infrared sensor 3, to not
It needs that temperature sensor 12 is arranged, can realize the miniaturization of infra-red ray detection device.
(embodiment 3)
Hereinafter, being illustrated to the infra-red ray detection device 21 of embodiment 3 using attached drawing.
Fig. 6 is the block diagram of the infra-red ray detection device 21 of embodiment 3.
The infra-red ray detection device 21 of embodiment 3 has:Infrared sensor 3, the measured body 2 such as detection people are (tested
Amount object) infrared ray that sends out;Scanner section 4 carries out rotation sweep to infrared sensor 3;Processing unit 5, processing infrared ray pass
The output of sensor 3;And control unit 6, control scanner section 4.Scanner section 4 is rotated to a direction D1 making infrared sensor 3
When, so that it is rotated with the 1st angle, θ 1, when making infrared sensor 3 be rotated to other direction D2, makes it with than the 1st angle, θ 1
Big the 2nd angle, θ 2 rotation.In addition, infra-red ray detection device 21 can also have the environment temperature of detection infrared sensor 3
Temperature sensor 12 (with reference to Fig. 5).
In the infra-red ray detection device 21 of present embodiment, control unit 6 has learning functionality, and controls infrared ray sensing
Device 3.Control unit 6 according to infrared sensor 3 detect as a result, study is measured the high place of possibility existing for body 2.Control
Portion 6 processed is measured body 2 according to whether existing, and changes when infrared sensor 3 is rotated to other direction D2, infrared sensor
The pendulous frequency for the infrared ray that 3 every 2nd angle, θs 2 carry out.For example, the measurement in the 1st high region of possibility existing for presumption people
When, the pendulous frequency at infrared sensor 3 is set as 10 times by control unit 6.In addition, high in the possibility that presumption people is not present
When the measurement in the 2nd region of (possibility existing for people is low), the pendulous frequency of infrared sensor 3 is set as 5 times by control unit 6.
By doing so, the time of measuring in the 2nd low region of possibility existing for people can be shortened.Due to being not necessarily to existing for people
The activity for being measured body 2 is measured in the 2nd low region of possibility, therefore can shorten the sweep time of infrared sensor 3
Performance without reducing infrared sensor 3.
When scanned infrared line sensor 3 is scanned to other direction D2, the 2nd low region of possibility existing for presumption people
It is middle exist be measured body 2 in the case of, it is next rotated to other direction D2 when, by the pendulous frequency at the 2nd region
It is set as identical as the 1st region that possibility existing for presumption people is high.Even if can if as a result, in the case where measured body 2 moves
Enough shorten performance of the sweep time of infrared sensor 3 without reducing infra-red ray detection device 21.
In addition, pendulous frequency when being rotated to other direction D2 for infrared sensor 3, it may existing for presumption people
Property high the 1st region be set as 10 times, the 2nd low region of possibility existing for presumption people is set as 5 times, but pendulous frequency is not limited to
This.The pendulous frequency of infrared sensor 3 can be suitably changed according to the purposes of infra-red ray detection device 21.
(embodiment 4)
Hereinafter, being illustrated to the infra-red ray detection device 31 of embodiment 3 using attached drawing.
Fig. 7 is the block diagram of the infra-red ray detection device 31 of embodiment 4.
The infrared sensor 3 of embodiment 3 has:Infrared sensor 3, (measured pair of the measured body 2 such as detection people
As) infrared ray that sends out;Scanner section 4 carries out rotation sweep to infrared sensor 3;Processing unit 5 handles infrared sensor 3
Output;And control unit 6, control scanner section 4 and infrared sensor 3.Scanner section 4 make infrared sensor 3 to one
Direction D1 rotate when, so that it is rotated with the 1st angle, θ 1, when making infrared sensor 3 be rotated to other direction D2, make its with than
Big the 2nd angle, θ 2 rotation of 1st angle, θ 1.In addition, infra-red ray detection device 21 can also have detection infrared sensor 3
The temperature sensor 12 of environment temperature (with reference to Fig. 5).
In the infra-red ray detection device 31 of embodiment 4, do not examined when infrared sensor 3 is rotated to a direction D1
In the case of measuring measured body 2, control unit 6 reduces the 2nd jiao of rotation when infrared sensor 3 is rotated to other direction D2
Spend pendulous frequency when θ 2.Here, will when infrared sensor 3 is rotated to other direction D2 to infrared sensor 3 to
Detect that the number that the existing place (direction) of measured body 2 measures is set as 10 times when one direction D1 rotation, it will be
The existing place (direction) that measured body 2 is not detected is measured when infrared sensor 3 is rotated to other direction D2
Number be set as 5 times.
Fig. 8 is the figure of the relationship of the infrared sensor 3 and measured body 2 when showing to rotate to a direction D1, and Fig. 9 is
The figure of the relationship of infrared sensor 3 and measured body 2 when showing to rotate to other direction D2.Here, will be to other direction
The maximum rotation angle of D2 is set as 120 °, and the 2nd rotation angle is set as 30 °.In addition, infrared sensor 3 will be worked as from another party
Stop direction that is primary and measuring infrared ray when often rotating 2 angle to the other end to an end of D2 and is set to the 1st
Measurement direction S1, the 2nd measurement direction S2, the 5th measurement direction S5 illustrates.
In Fig. 8, example shown in Fig. 9, relative to infrared sensor 3, it is measured body 2 and is present in the 2nd measurement direction
On S2.Assuming that when infrared sensor 3 is rotated to a direction D1, infra-red ray detection device 31 detects the 2nd measurement side
To measured body 2 present on S2.In this case, when being rotated to other direction D2, infrared sensor 3 is surveyed the 2nd
Pendulous frequency on amount direction S2 is set as 10 times, measurement direction (the 1st measurement direction S1, the 3rd~the 5th measurement side in addition to this
To S3~S5) on pendulous frequency be set as 5 times.By changing pendulous frequency in this way, can shorten sweep time without
Reduce the accuracy of detection of the activity of infrared sensor 3.
Next, Figure 10 is to show in the case where being measured body 2 and being moved from the 2nd measurement direction S2, infrared ray sensing
The rotation figure of the relationship of device 3 and measured body 2.Assuming that being measured the measurement direction that body 2 is moved to the 3rd from the 2nd measurement direction S2
S3, and infra-red ray detection device 31 detects quilt present on the 3rd measurement direction S3 when being rotated to direction D1
Measure body 2.In this case, when being rotated to other direction D2, infrared sensor 3 will be on the 3rd measurement direction S3
Pendulous frequency is set as 10 times, measurement direction in addition to this (the 1st, the 2nd, the 4th, the 5th measurement direction S1, S2, S4, S5) on survey
Amount number is set as 5 times.By changing pendulous frequency in this way, the movement of measured body 2 can be tracked.
In addition, for convenience of description, illustrating maximum rotation angle, the 2nd angle, θ 2, pendulous frequency, and be not limited to reality
Apply the number described in mode 4.It can be suitably changed according to the purposes of infra-red ray detection device 31.It can also will measure secondary
Number is set as 0 time.In this case, the sweep time of infrared sensor 3 can further be shortened.
Even if can if the disclosure is there are multiple measured objects or in the case where measured object moves
It is enough accurately proceed the detection of infrared ray, therefore useful to such as air-conditioning equipment etc..
(summary)
Infra-red ray detection device (1,11,21,31) involved by 1st scheme has infrared sensor (3) and scanner section
(4).Infrared sensor (3) detection is measured the infrared ray of object (being measured body 2).Scanner section (4) is in one direction (D1)
Rotation sweep is carried out to infrared sensor (3) on the other direction (D2) opposite with one direction (D1).Infrared ray sensing
Device (3) often rotates the detection that the 1st angle (θ 1) carries out infrared ray when being rotated to a direction (D1).Infrared sensor (3)
When being rotated to other direction (D2), the detection that the 2nd angle (θ 2) carries out infrared ray is often rotated.2nd angle (θ 2) the 1st angle of ratio
(θ 1) is big.
In infra-red ray detection device (1,11,21,31) involved by the 2nd scheme, in the 1st scheme, for infrared ray
Sensor (3) is the detection of infrared ray the time spent in, time ratio when infrared sensor (3) is rotated to other direction (D2)
Time when being rotated to a direction (D1) is long.
In infra-red ray detection device (1,11,21,31) involved by the 3rd scheme, in the 1st or the 2nd scheme, with red
The environment temperature of outside line sensor (3) increases, and scanner section (4) reduces the 2nd angle (θ 2).
In infra-red ray detection device (1,11,21,31) involved by the 4th scheme, in either one of the 1st~the 3rd scheme
In case, in the case of can not detecting measured object (2) when infrared sensor (3) is rotated to a direction (D1), sweep
It retouches portion (4) and increases the 2nd angle (θ 2).
In the either a program of the 1st~the 4th scheme, the infra-red ray detection device (1,11,21,31) involved by the 5th scheme
Also there is the control unit (6) of control infrared sensor (3).Control unit (6) is according to the output of infrared sensor (3), setting
It is measured the 2nd region that possibility is low existing for the 1st region and measured object (2) that possibility is high existing for object (2).Control
The pendulous frequency of infrared sensor (3) in 1st region is set as more than the infrared sensor in the 2nd region by portion (6) processed
(3) pendulous frequency.
Reference sign
1,11,21,31 infra-red ray detection device
2 measured bodies (measured object)
3 infrared sensors
4 scanner sections
5 processing units
6 control units
7 electronic equipments
12 temperature sensors
Claims (5)
1. a kind of infra-red ray detection device, has:
Infrared sensor detects the infrared ray for being measured object;And
Scanner section in one direction and on the other direction opposite with one direction revolves the infrared sensor
Turn scanning,
The infrared sensor when being rotated to one direction, often rotate the 1st angle carry out infrared ray detection, to
When the other direction rotation, the detection that the 2nd angle carries out infrared ray is often rotated,
2nd angle is bigger than the 1st angle.
2. infra-red ray detection device according to claim 1, wherein
For the infrared sensor the detection of infrared ray the time spent in, the infrared sensor is to described another party
To rotation when the time spent in ratio rotated to one direction when the time spent in it is long.
3. infra-red ray detection device according to claim 1 or 2, wherein
It is increased with the environment temperature of the infrared sensor, the scanner section reduces the 2nd angle.
4. infra-red ray detection device according to claim 1 or 2, wherein
In the case of the measured object can not being detected when the infrared sensor is rotated to one direction, institute
It states scanner section and increases the 2nd angle.
5. infra-red ray detection device according to claim 1 or 2, wherein
The infra-red ray detection device further has the control unit for controlling the infrared sensor,
The control unit according to the output of the infrared sensor, set possibility existing for the measured object it is high the
The 2nd low region of possibility existing for 1 region and the measured object,
The pendulous frequency of the infrared sensor in 1st region is set as being more than the 2nd region by the control unit
In the infrared sensor pendulous frequency.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017077974A JP6872685B2 (en) | 2017-04-11 | 2017-04-11 | Infrared detector |
| JP2017-077974 | 2017-04-11 |
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| Publication Number | Publication Date |
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| CN108693565A true CN108693565A (en) | 2018-10-23 |
| CN108693565B CN108693565B (en) | 2021-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810308838.5A Active CN108693565B (en) | 2017-04-11 | 2018-04-08 | Infrared detection device |
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| JP (1) | JP6872685B2 (en) |
| CN (1) | CN108693565B (en) |
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| CN114136464A (en) * | 2021-10-26 | 2022-03-04 | 深圳市思码逻辑技术有限公司 | Performance test method, device, equipment and system of infrared sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136464A (en) * | 2021-10-26 | 2022-03-04 | 深圳市思码逻辑技术有限公司 | Performance test method, device, equipment and system of infrared sensor |
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| Publication number | Publication date |
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| JP2018179694A (en) | 2018-11-15 |
| JP6872685B2 (en) | 2021-05-19 |
| CN108693565B (en) | 2021-11-05 |
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