CN113612939A - Indoor personnel detection camera based on infrared sensing array - Google Patents
Indoor personnel detection camera based on infrared sensing array Download PDFInfo
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- CN113612939A CN113612939A CN202010304680.1A CN202010304680A CN113612939A CN 113612939 A CN113612939 A CN 113612939A CN 202010304680 A CN202010304680 A CN 202010304680A CN 113612939 A CN113612939 A CN 113612939A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/30—Transforming light or analogous information into electric information
- H04N5/33—Transforming infrared radiation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
- G01J5/0025—Living bodies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
- G01J5/14—Electrical features thereof
- G01J5/16—Arrangements with respect to the cold junction; Compensating influence of ambient temperature or other variables
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
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- G—PHYSICS
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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- G—PHYSICS
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
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- Spectroscopy & Molecular Physics (AREA)
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Abstract
The invention discloses an indoor personnel detection camera based on an infrared sensing array, which relates to the technical field of infrared equipment and comprises a base and a camera body, wherein the camera body is arranged on the upper surface of the base, a camera panel is fixedly arranged on one side of the camera body, buckles are fixedly arranged on the camera panel and one side of the corresponding camera body, the buckles are embedded into an indoor ceiling or a wall of a building, an installation groove is formed in the center of the surface of the camera panel, a seal bin is fixedly arranged in the installation groove, and a disc is arranged in the center of the seal bin. This camera is listened to indoor personnel based on infrared ray sensing array can detect the performance of real-time temperature, temperature variation degree, temperature variation direction, and this makes it can be used in a plurality of fields, including indoor or in-car air conditioner temperature sensing original paper, fire control, elevator control, household electrical appliances temperature control, emergency exit, indoor personnel control, passenger classification etc. field.
Description
Technical Field
The invention relates to the technical field of infrared equipment, in particular to an indoor personnel detection camera based on an infrared sensing array.
Background
Indoor personnel detect the difficult point and the key technical problem of the indoor data that need collect of building intelligent control always, indoor environment can't use satellite positioning, signal interference intensity is big, and use some detection methods based on medium, such as RFID, etc., it is with high costs, and it is inconvenient to use, and it has great error again to use detection methods such as WIFI, or use some common sensor methods on the market, only after sensing people and removing, just can carry out corresponding operation, use the automatic control of lamp as an example, how can accomplish to have the people time to light, no matter people are walking about or static, the lamp just turns off when nobody, but not sense the human action and just turn on the lamp.
Therefore, the conventional detection method is not satisfactory in the aspects of timeliness and accuracy of sensing indoor personnel. A detection mode which is convenient to use and has small detection error is always lacked in the market, so that a detection mode with high sensitivity for detecting a static human body needs to be developed.
Therefore, an indoor personnel detection camera based on an infrared sensing array is provided to solve the above problems.
Disclosure of Invention
The invention provides an indoor personnel detection camera based on an infrared sensing array, which has the advantage of efficiently and accurately counting personnel information in a target area so as to solve the problems in the background technology.
In order to realize the purpose of efficiently and accurately counting the personnel information in the target area, the invention provides the following technical scheme: the utility model provides a camera is listened to indoor personnel based on infrared ray sensing array, includes base, camera body, the upper surface at the base is installed to the camera body, one side fixed mounting of camera body has the panel of making a video recording, the equal fixed mounting in one side of the camera body of panel of making a video recording and correspondence has the buckle, the buckle embedding is inside indoor furred ceiling or wall body of building, the mounting groove has been seted up at the center department on panel surface of making a video recording, the inside fixed mounting of mounting groove has the sealed storehouse, the center department of sealed storehouse is provided with the disc, the tail end fixed mounting of sealed storehouse has an installation section of thick bamboo, the inside of sealed storehouse is provided with the treater, the treater passes through the inside of installation frame setting at the sealed storehouse, the external conductor of treater is connected with infrared sensing array.
As a preferred technical solution of the present invention, two sides inside the camera body are further provided with a rotating fan for dissipating heat, respectively.
As a preferred technical scheme of the invention, the ceiling installation height of the camera body is 3 meters, the detection area of the infrared sensing array is 6m, the resolution is 187mm, the NETD is 0.1KRMS, and the temperature range of a measurable object is-20 to 300 ℃.
As a preferred technical scheme of the invention, the disc is a black semitransparent disc, and the disc is made of a one-way light-transmitting material.
As a preferred technical scheme of the invention, the visual angle standard of the infrared sensing array in the whole measuring range is 90 degrees x90 degrees, and the infrared sensing array is packaged by a pin TO 39.
As a preferred technical scheme of the invention, the processor is a STARM 32-bit Cortex-M3 single chip microcomputer, the highest working frequency is 72MHz, the single-cycle multiplication and division device and the internal SRAM is 64K bytes, and the processor is provided with 2 paths of I2C interfaces, supports SMBus/PMBus, USB2.0 full speed/host/OTG controller and 10/100M Ethernet MAC.
As a preferable technical scheme of the invention, the temperature precision of a typical target object of the camera body is 1 degree, the high precision level can be kept in the whole measuring range, the standard of the visual angle is 90 degrees x90 degrees, and the pin TO39 is packaged.
As a preferred technical scheme of the present invention, the camera body is internally provided with a core board 32 that carries an AI algorithm in a single chip microcomputer, and can convert thermal radiation signals of people into numerical values, then generate a 64 × 64 grid image, detect the number of people in an indoor area in real time based on the AI people recognition algorithm, and finally upload the recognition result to the cloud.
Compared with the prior art, the invention provides an indoor personnel detection camera based on an infrared sensing array, which has the following beneficial effects:
1. this camera is listened to indoor personnel based on infrared ray sensing array, indoor thermal radiation temperature that sensing array detected is the numerical value at the singlechip transformation, the numerical value after the transformation, draw into the thermal imaging picture through the algorithm, embody the human shape of quilt survey, the state, can demonstrate human walking direction, temperature variation and high and low temperature trend, detect the slight action of human body, the temperature variation that the activity brought, and through AI algorithms such as deep learning, detect personnel's quantity in this net, distribution position, moving direction.
2. This camera is listened to indoor personnel based on infrared ray sensing array can detect the performance of real-time temperature, temperature variation degree, temperature variation direction, and this makes it can be used in a plurality of fields, including indoor or in-car air conditioner temperature sensing original paper, fire control, elevator control, household electrical appliances temperature control, emergency exit, indoor personnel control, passenger classification etc. field.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connecting structure of the mounting barrel of the present invention;
FIG. 3 is a schematic view of the attachment structure of the mounting frame of the present invention;
FIG. 4 is a compensation circuit diagram of an infrared sensor array of the present invention;
FIG. 5 is a diagram showing the hardware components of the present invention;
fig. 6 is a schematic circuit diagram of the present invention.
In the figure: 1. a base; 2. a camera body; 3. a camera panel; 4. buckling; 5. mounting grooves; 6. sealing the bin; 7. a disc; 8. mounting the cylinder; 9. a mounting frame; 10. a processor; 11. an infrared sensing array.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the invention discloses an indoor personnel detection camera based on an infrared sensing array, which comprises a base 1 and a camera body 2, wherein two sides inside the camera body 1 are respectively provided with a rotating fan for heat dissipation, the camera body 2 is installed on the upper surface of the base 1, one side of the camera body 2 is fixedly provided with a camera panel 3, one sides of the camera panel 3 and the corresponding camera body 2 are both fixedly provided with a buckle 4, the buckle 4 is embedded inside a ceiling or a wall in a building room, the center of the surface of the camera panel 3 is provided with an installation groove 5, the inside of the installation groove 5 is fixedly provided with a sealed cabin 6, the center of the sealed cabin 6 is provided with a disc 7, the disc 7 is a black semitransparent disc 7, the disc 7 is made of a one-way light-transmitting material, the tail end of the sealed cabin 6 is fixedly provided with a mounting barrel 8, a processor 10 is arranged in the sealed cabin 6, the processor 10 is a STARM 32-bit Cortex-M3 single chip microcomputer, the highest working frequency is 72MHz, a single-cycle multiplier and divider, the internal SRAM is 64K bytes, the processor has a 2-way I2C interface, SMBus/PMBus, USB2.0 full speed/host/OTG controller and 10/100M Ethernet MAC are supported, the processor 10 further comprises a WIFI circuit, a compensation circuit using a bridge compensation method is included in the infrared sensing array 11, the hardware has 4 parts (as shown in FIG. 5), wherein the RS485 bus module comprises a WIFI circuit, a circuit schematic diagram (as shown in FIG. 6), as shown in FIG. 4, the hardware circuit compensation TPS434 integrates a thermistor, in order to prevent the output of the infrared sensor from drifting, a bridge is formed by R1, R2, R3 and the thermistor in the TPS434, the device is connected in series with a thermopile in a TPS434 to play a role in temperature compensation on a cold end, then the device is accessed to an AD sampling channel of a singlechip through high-precision operation amplification, the AD sampling conversion of the singlechip is realized by interruption, when the AD channel samples and converts an analog value, an interruption is generated, the singlechip enters an interruption service program to process an obtained digital quantity, the singlechip obtains 16 digital quantities of the AD channel at different moments when the interruption is generated, the 16 digital quantities are averaged to obtain a more accurate value, a processor 10 is arranged in a sealed cabin 6 through an installation frame 9, an external lead of the processor 10 is connected with an infrared sensing array 11, the suspended ceiling of a camera body 1 is 3 meters in height, the detection area of the infrared sensing array 11 is 6m, the resolution is 187mm, and the NETD is 0.1KRMS, the temperature range of a measurable object is-20 TO 300 ℃, the temperature precision of a typical target object of the camera body 1 is 1 degree, the high precision level can be kept in the whole measuring range, the visual angle standard is 90 degrees x90 degrees, and a pin TO39 is packaged, an AI algorithm is carried in a singlechip of a core board 32 arranged in the camera body 1, a heat radiation signal of a person can be converted into a numerical value, then a 64 x 64 grid image is generated, the real-time number of the person in an indoor area is detected based on the AI person identification algorithm, the identification result is finally uploaded TO a cloud end, the indoor person based on the infrared sensing array detects the camera, the indoor heat radiation temperature detected by the sensing array is converted into the numerical value on the singlechip, the converted numerical value is drawn into a heat imaging graph through the algorithm, the shape and the state of the detected human body are reflected, and the walking direction of the human body can be displayed, the temperature variation caused by the fine movement and activity of the human body is detected according to the temperature variation and the trend of high and low temperatures, and the number, distribution position and moving direction of the personnel in the grid are detected through AI algorithms such as deep learning.
The internal working mode of the system is as follows: the indoor heat radiation temperature detected by the infrared sensing array 1 is converted into a numerical value on the core board 32 single chip microcomputer, the converted numerical value is generated into a 32 x 32 grid through an algorithm, and finally, a heat imaging graph is drawn to reflect the shape and the state of the detected human body, heat sources are dispersed on the 256 thermopile elements, so that the walking direction, the temperature variation and the high and low temperature trends of the human body can be displayed, the temperature variation caused by fine actions and activities of the human body can be detected, and the number, the distribution position and the moving direction of personnel in the grid can be detected through AI algorithms such as deep learning; and finally, uploading the detection result to a cloud server through an IoT technology.
The working principle and the using process of the invention are as follows: when the temperature sensor is used, the infrared sensing array 11 obtains temperature data of a measured target, then the temperature data is amplified through the high-precision amplifying circuit and then sent to the processor 10, the processor 10 integrates 13 paths of 12-bit AD analog input channels, each analog quantity acquired by the infrared sensing array 11 is converted, analyzed and processed, a processing result is calculated through an algorithm and generates a form easy to display, and finally the result is output according to a TCP/IP protocol in a WIFI wireless transmission mode.
To sum up, this camera is listened to indoor personnel based on infrared ray sensing array to Cortex-M3 singlechip is the calculation carrier, the infrared sensing array 11 of application infrared thermopile technique is the detection means, combine the inside integrated data processing algorithm of treater 10, heat source signal visualization technique and wireless communication technique, realize the indoor personnel real-time detection of high accuracy, this camera is listened to indoor personnel based on infrared ray sensing array, can detect real-time temperature, the temperature variation degree, the performance of temperature variation direction, this makes it can be used in a plurality of fields, including indoor or the interior air conditioner temperature sensing original paper of car, fire control monitoring, elevator control, household electrical appliances temperature control, the emergency exit, indoor personnel control, fields such as passenger classification.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a camera is listened to indoor personnel based on infrared ray sensing array, includes base (1), camera body (2), its characterized in that: the camera body (2) is arranged on the upper surface of the base (1), one side of the camera body (2) is fixedly provided with a camera panel (3), a buckle (4) is fixedly arranged on one side of the camera panel (3) and the corresponding camera body (2), the buckle (4) is embedded in the indoor ceiling or wall of the building, the center of the surface of the camera panel (3) is provided with an installation groove (5), a sealing bin (6) is fixedly arranged in the mounting groove (5), a disc (7) is arranged at the center of the sealing bin (6), the tail end of the sealed bin (6) is fixedly provided with an installation barrel (8), a processor (10) is arranged in the sealed bin (6), the processor (10) is arranged inside the sealed cabin (6) through a mounting frame (9), an infrared sensing array (11) is connected with an external lead of the processor (10).
2. The infrared sensing array-based indoor personnel detection camera head as claimed in claim 1, wherein: and rotary fans used for heat dissipation are respectively arranged on two sides in the camera body (1).
3. The infrared sensing array-based indoor personnel detection camera head as claimed in claim 1, wherein: the suspended ceiling installation height of the camera body (1) is 3 meters, the detection area of the infrared sensing array (11) is 6m, the resolution is 187mm, the NETD is 0.1KRMS, and the temperature range of a measurable object is-20 to 300 ℃.
4. The infrared sensing array-based indoor personnel detection camera head as claimed in claim 1, wherein: the disc (7) is a black semitransparent disc (7), and the disc (7) is made of a one-way light-transmitting material.
5. The infrared sensing array-based indoor personnel detection camera head as claimed in claim 1, wherein: the infrared sensing array (11) has a viewing angle standard of 90 degrees x90 degrees in the whole measuring range and is packaged by a pin TO 39.
6. The infrared sensing array-based indoor personnel detection camera head as claimed in claim 1, wherein: the processor (10) is a STARM32 bit Cortex-M3 single chip microcomputer, the highest working frequency is 72MHz, a single-cycle multiplication and division device and an internal SRAM (static random access memory) of 64K bytes are provided with 2 paths of I2C interfaces, and the processor supports SMBus/PMBus, USB2.0 full speed/host/OTG controllers and 10/100M Ethernet MAC.
7. The infrared sensing array-based indoor personnel detection camera head as claimed in claim 1, wherein: the temperature precision of a typical target object of the camera body (1) is 1 degree, the high precision level can be kept in the whole measuring range, the standard of a visual angle is 90 degrees x90 degrees, and a pin TO39 is packaged.
8. The infrared sensing array-based indoor personnel detection camera head as claimed in claim 1, wherein: the camera body (1) is internally provided with an AI algorithm carried in a core board 32 single chip microcomputer, can convert personnel heat radiation signals into numerical values, then generates a 64 x 64 grid image, detects the real-time number of people in an indoor area based on the AI personnel identification algorithm, and finally uploads a recognition result to the cloud.
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| CN111868489A (en) * | 2018-03-28 | 2020-10-30 | 松下知识产权经营株式会社 | Infrared sensor module, air conditioner, and air conditioner control system |
| CN111868489B (en) * | 2018-03-28 | 2024-07-02 | 松下知识产权经营株式会社 | Infrared sensor module, air conditioner and air conditioner control system |
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