TWI396039B - Remote sensing start-up power-saving infrared detection camera or photographic control system - Google Patents

Description

Remote sensing activated power saving infrared detection camera or photography control system

The present invention relates to a "distance-induction activated power-saving infrared detection camera or photography control system", which utilizes a pyroelectric type infrared sensor of an inductive system to cooperate with a programmable digital potentiometer and a microcontroller system. The two-stage sensing range with long distance and short distance is set, so that the automatic camera or photography device can remotely sense the power source to achieve the purpose of battery saving, and then the camera or camera focus action, using the temperature It takes a certain amount of movement time for a living animal to move from a long distance to a close range to provide sufficient time for the camera or camera to focus, and to provide better photographic or photographic quality and improved power saving. And the two-stage induction method can avoid the occurrence of malfunction due to the interference of sunlight.

According to the survey, most of the foreign automatic camera equipment used by research institutes and national park management offices to monitor conservation animals and wild animals are made in the United States. The US-made automatic camera equipment is generally divided into active light-shielding switches. In combination with passive infrared sensing, the active light blocking switch needs to place the light emitter and the light receiver separately on both sides of the path through which the animal passes, and when the animal passes, the light emitter is blocked from being emitted to the light receiver. The light source causes the system to drive the camera to take a shooting action. Although the light interruption switch has fewer malfunctions, in order to keep the light source continuously emitted, it is necessary to consume a considerable amount of power, resulting in excessive power consumption, causing its use. There are disadvantages of high power consumption on the top, so under the consideration of battery operation, this induction trigger method is not suitable for places without mains supply. In the middle, another passive infrared sensing method uses a pyroelectric type infrared ray. When a warm body animal passes through the sensing range of the system, the camera is triggered, and the power consumption is less than that of the active light occlusion switch. However, the passive infrared ray is passive. The sensing method is susceptible to abnormal interference caused by sunlight, and the active light blocking switch and passive infrared sensing separate the sensor from the camera device. Therefore, once the animal travels in different directions and speeds, It will cause the shooting time to be too early or too slow, so that the animal can not be completely into the mirror or the focusing time is too short, resulting in unclear photos and can not be interpreted as an animal. At the same time, domestic self-made automatic camera equipment has been patched together with the camera. The visitor is mainly using the pyroelectric infrared to sense the presence of warm-up animals and has the advantage of active infrared power saving. And the light-free interrupt switch is susceptible to the interference problem of the movement of the deciduous and non-warm animals, and the size of the warm-up animal is also not selective, as long as the heat source of the warm-up animal is enough to allow the pyro-type infrared to be sensed. However, when the conventional pyroelectric infrared sensing system is operated outdoors, the convection and light and shadow changes will interfere with the normal operation of the pyroelectric infrared rays, causing unnecessary unnecessary malfunctions, consuming the photographic film in vain, and the system needs to be at any time. Keeping it in operation for sudden and sudden induction, the power consumed by the camera is considerable, and because the domestically produced automatic camera equipment does not focus in advance, it is detected when the warm-up animals are detected. In the case of camera photography, the picture taken is not clear, and it is possible to connect with the same animal. Trigger automatic photographic equipment, resulting in a waste of film and valid photo is too low and other issues.

In addition, an infrared camera system disclosed in the Republic of China Patent Gazette No. 200511592, published on March 16, 1994 (2005), comprises a thermally adjustable optical filter pixel array, a near infrared light source and a near infrared ray detector. The detector array mainly uses infrared rays to achieve imaging purposes, and is different from the present invention in that infrared rays are used to detect the movement of warm-up animals.

In view of the above, the present inventors have continually tested methods and products in the spirit of creation, thinking and process and installation methods, and through years of experience and many trials, have improved the existing creations, and then proposed this invention.

The main object of the present invention is to provide a remote sensing activated power-saving infrared detection camera or photography control system, which uses a focus type infrared sensor of an induction system and a microcontroller system to set a remote sensing Range and proximity sensing range of two-stage operation, when the animal moves into a wide area, use the remote infrared sensor to activate the system power and focus on the camera or camera, when the animal moves into the camera or photography range The camera action is then performed so that the automatic camera or photographic apparatus has sufficient time to perform the focusing action, thereby providing high definition photos or quality and a higher effective photo ratio or better film recording.

A secondary object of the present invention is to provide a remote sensing activated power-saving infrared detection camera or photography control system, which uses a sensing system to set a long-range and close-range two-stage sensing range to allow warm-up animals to enter. The long-range sensing range only activates the camera or camera power supply and performs the focusing action design, so that the camera or the camera and the microcontroller system can be in the power-off state and the power-saving mode when they are not working normally, thereby reducing the battery energy consumption. Save power and effectively extend the operating time of your camera or camera.

Another object of the present invention is to provide a remote sensing activated power saving infrared detection camera or photography control system, wherein the sensing system and the camera or photography control system are configured by a microcontroller system Automatic camera or photography equipment can be optimized according to the user environment and the flexibility of the camera to adjust the system program parameters to effectively solve the problems of power consumption, pre-focus, malfunction and continuous triggering, so that the automatic camera or camera equipment can be used for a long time. It operates in an outdoor environment and saves battery usage.

In the remainder, the best embodiment of the invention will be described in detail with reference to the drawings:

As shown in the first figure, the system architecture of the present invention is an induction system (11) coupled with a microcontroller system (12) and a camera or photography control system (13) to form an automatic camera or The control circuit of the photographic device (10), wherein the sensing system (11) is provided with a pyroelectric type infrared sensor (111) having an output voltage of about several mV, and a DC amplifier circuit (112) and an AC amplifier circuit (113). In cooperation, the voltage S1 outputted by the pyroelectric infrared sensor (111) can be first amplified by the DC amplifying circuit (112) to amplify the original detected signal to S2. At this time, the S2 signal needs to be The capacitor is coupled to the AC amplifying circuit (113) for second-stage amplification to filter out the DC signal to prevent the amplified AC signal plus the DC signal from exceeding the allowable voltage variation range, so that the AC signal exceeding the voltage variation range is clamped and flattened. The DC amplifying circuit (112) and the AC amplifying circuit (113) are respectively matched with the first programmable digital potentiometer (114) and the second programmable digital potentiometer (115), and are set by the microcontroller system (12). First programmable digital potentiometer (11 4) and the value of the second programmable digital potentiometer (115) to achieve the purpose of programmable DC amplification circuit (112) and AC amplification circuit (113) magnification, so that the pyroelectric infrared sensor (111) ) It has a long-range sensing range (X1, please refer to the second figure) and a close-range sensing range (X2), and the pyroelectric infrared sensor (111) outputs one for the approach and departure of the warm-up animals. The upward glitch and the downward glitch, therefore, the sensing system (11) is provided with a window comparator (116) for receiving the signal output by the pyroelectric infrared sensor (111) to detect the proximity of the warm animal The window type comparator (116) sets two parameters of an upper limit comparison voltage and a lower limit comparison voltage, and can determine an upper limit comparison voltage and a lower limit comparison voltage according to the size of the imaging range and the sensing sensitivity. The magnitude of the value causes the warm-up animal to approach and leave the spur signal S1 sensed by the pyroelectric infrared sensor (111), and is amplified twice by the DC amplifying circuit (112) and the AC amplifying circuit (113). After comparison by window type comparator (116) Generating a pulse signal and converting it into a trigger signal acceptable to the microcontroller system (12) via a trigger circuit (117) can be used to trigger an interrupt of the microcontroller system (12) to further drive the camera to take a picture. The microcontroller system (12, as shown in the third figure) writes the interrupted subprogram with the PIC microcontroller with sleep power saving mode and watchdog anti-down function as the system processing core. ), the standby sleep subroutine (121), the programmable digital potentiometer control subroutine (124), the watchdog prevention watch subprogram (122), and the device driver subprogram (125) can be based on The user environment and the subject, the elastic adjustment system program parameters achieve the purpose of optimizing the effect, wherein the standby sleep subroutine (121) allows the microcontroller system (12) to enter the power saving mode, so that the current amount is reduced to the μA level. It can effectively extend the battery life, wake up the microcontroller system (12) when the interrupt signal is sensed, and handle the subsequent programmable digital potentiometer control subroutine (124) and device driver subprogram (125) in normal operation mode. Requirements, Use the watchdog anti-crash subroutine (122) to avoid the electromagnetic interference of the external environment and other unpredictable situations, causing the system to crash, thereby maintaining the normal operation of the system, interrupting the subprogram (123) through the trigger The circuit (117) receives the trigger signal generated by the pyroelectric type infrared sensor (111), and the programmable digital potentiometer control subroutine (124) is used to set the first programmable digital potentiometer (114) and the first The value of the two programmable digital potentiometer (115), the device driver subprogram (125) is coupled to the camera or camera control system (13) to drive a power control circuit (131) and a focus, camera or photography control circuit ( 132) Focus and photograph or photograph.

As shown in the fourth figure, the action flow chart of the present invention is used. When the automatic photographing or photographing apparatus (10) is used, the pyroelectric type infrared sensor (111) of the sensing system (11) utilizes the first The programmed digital potentiometer (114) and the second programmable digital potentiometer (115) are sized by the microcontroller system (12) to enable the automatic camera or photographic device (10) to reach the remote sensing range (X1). ) and the two-stage operation of the proximity sensing range (X2), and when the pyroelectric infrared sensor (111) is in the first long-range sensing range (X1) state, the microcontroller system (12) and the camera Or the photographic control system (13) is in the power saving mode and the power-off state, respectively, to reduce the battery energy consumption to effectively extend the operation time of the automatic camera or photographic apparatus (10), in the first long-range sensing range (X1) When the warm-up animal is sensed, the signal received by the window comparator (116) generates an interrupt signal via the trigger circuit (117) to start the interrupt sub-program (123) of the microcontroller system (12), and passes through the microcontroller. The device driver subroutine (125) of the system (12) activates the camera (or photography) control system (13) The power control circuit (131) and the focus, camera or photography control circuit (132) focus to give the camera or camera sufficient time to focus, and then the microcontroller system (12) adjusts the first programmable The digital potentiometer (114) and the second programmable digital potentiometer (115) are set to a smaller value, so that the pyrotype far infrared ray (111) is in the second short-range sensing range (X2), and the warm-up animal moves to the first In the two-stage close-range sensing range (X2), the camera or photography is performed immediately, so that the warm-up animal can be completely within the range of photography or photography, thereby providing high-definition photo quality and a high effective photo ratio. And the sensing system (11) and the camera or photography control system (13) of the automatic camera or imaging device (10) can be set by the microcontroller system (12), and can be adapted according to the user environment and the object elasticity. Optimize the system program parameters to effectively solve the problems of power consumption, pre-focus, malfunction and continuous triggering, so that the automatic camera or camera device (10) can operate in an outdoor environment for a long time and save battery consumption. The best use status.

In summary, when the invention is industrially usable and progressive, and the invention is not found in any publication, it is also novel, and when it complies with the provisions of Articles 21 and 22 of the Patent Law, To file an application for a patent for invention, please ask your reviewer to pay for the patent as a prayer.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; that is, the equal variation and modification of the scope of the patent application of the present invention should still belong to the present invention. Within the scope of the patent.

10. . . Automatic camera or photography equipment

11. . . Induction system

111. . . Pyroelectric infrared sensor

112. . . DC amplifier circuit

113. . . AC amplifying circuit

114. . . First programmable digital potentiometer

115. . . Second programmable digital potentiometer

116. . . Window comparator

117. . . Trigger circuit

12. . . Microcontroller system

121. . . Standby sleep subroutine

122. . . Watch dog

123. . . Interrupt subroutine

124. . . Programmable digital potentiometer control subroutine

125. . . Device driver subroutine

13. . . Camera or photography control system

131. . . Power control circuit

132. . . Focus, camera or photography control circuit

The first figure is an architectural diagram of the present invention.

The second figure is a schematic diagram of the remote and near-range sensing range of the pyroelectric infrared sensor of the present invention.

The third figure is an architectural diagram of the microcontroller system of the present invention.

The fourth figure is a flow chart of the action of the present invention.

10. . . Automatic camera or photography equipment

11. . . Induction system

111. . . Pyroelectric infrared sensor

112. . . DC amplifier circuit

113. . . AC amplifying circuit

114. . . First programmable digital potentiometer

115. . . Second programmable digital potentiometer

116. . . Window comparator

117. . . Trigger circuit

12. . . Microcontroller system

13. . . Camera or photography control system

131. . . Power control circuit

132. . . Focus, camera or photography control circuit

Claims (2)

A remote sensing activated power-saving infrared detection camera or photography control system, which is provided with an induction system and a microcontroller system and a camera or photography control system to form a control loop of an automatic camera or photography device, The sensing system is provided with a pyroelectric infrared sensor, a DC amplifier circuit, an AC amplifier circuit, a window comparator and a trigger circuit, so that the glitch signal sensed by the pyroelectric infrared sensor can be After being amplified by the DC amplifying circuit and the AC amplifying circuit twice, and then being compared by the window comparator, a pulse signal is generated and converted into a trigger signal acceptable to the microcontroller system through the trigger circuit to activate the microcontroller system. The interruption further drives the camera or photography control system for focusing, photographing or photographing, and the DC amplifying circuit and the AC amplifying circuit are respectively matched with the first programmable digital potentiometer and the second programmable digital potentiometer, and are controlled by the micro control The system sets the values of the first programmable digital potentiometer and the second programmable digital potentiometer to achieve programmable The purpose of the magnification of the DC amplifying circuit and the AC amplifying circuit is to make the pyroelectric infrared sensor have a two-stage effective sensing range of a long-range sensing range and a short-range sensing range, and the microcontroller system is PIC micro The controller, as the core of the system processing, writes an interrupt subroutine, a programmable digital potentiometer control subprogram, and a device driver subprogram. The interrupt subprogram uses a trigger circuit to receive a trigger signal generated by the pyroelectric infrared sensor. The programmable digital potentiometer control subroutine is used to set the values of the first programmable digital potentiometer and the second programmable digital potentiometer. The device driving subprogram is matched with the camera or photography control system to drive a power control circuit. And a focusing, photographing or photography control circuit for focusing and photographing or photographing, so that the automatic photographing or photographing device can flexibly adjust the system program parameters according to the user environment and the object to achieve the purpose of optimizing the effect. The remote sensing activated power-saving infrared detection camera or photography control system described in claim 1, wherein the PIC microcontroller of the microcontroller system is programmed with a standby sleep subroutine and a watchdog (Watch) Dog) anti-downtime subroutine program, the standby sleep subroutine system can make the microcontroller system enter the sleep power saving mode, so that the current amount drops to the μA level, which can effectively extend the battery life, and wake up when the interrupt signal is sensed. The microcontroller system handles the requirements of the subsequent programmable digital potentiometer control subroutine and device driver subprogram in the normal operation mode. The Watchdog anti-counterfeit program can avoid electromagnetic interference and other non-existence of the external environment. The pre-aware situation caused the system to crash, thus maintaining the normal operation of the system.