Camera capable of being automatically turned on and off

Abstract

The utility model discloses a camera capable of automatically switching on and off, which belongs to the technical field of communication and comprises a camera module, a controller module, an infrared sensor module, a communication module, a storage module, a clock module, an interface module and a switching power supply module. The camera module, the infrared sensor module, the communication module, the storage module, the clock module, the interface module and the switching power supply module are respectively connected with the controller module; the camera module comprises an AR0230CS sensor and an SLVS interface, the storage module comprises a 256Mb Flash module and a 4Gb DDR3 module, the AR0230CS sensor is connected with the main control module through the SLVS interface, the Flash module and the DDR3 module are respectively connected with the main control module, the leaving and leaving states of people are judged through images and infrared rays, automatic on-off of a power supply of the intelligent socket is achieved, and then work of electric appliances is controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of cameras, in particular to a camera capable of automatically switching on and off. Background Art

[0002] At present, with the rapid development of the electronics industry and the increasingly stringent conditions of aerospace experiments, the miniaturization and integration of onboard equipment are also constantly increasing. Image data, as an intuitive data source, plays an increasingly important role in data support.

[0003] Aerospace equipment generally has the characteristics of limited space, precious energy consumption and limited bandwidth. Therefore, the image acquisition system must minimize power consumption while ensuring image quality, and it is expected to work for a long time, and minimize the bit rate, hoping to save storage space and reduce bandwidth utilization.

[0004] With the rapid development of the electronics industry and the increasingly stringent conditions of aerospace experiments, the miniaturization and integration of onboard equipment are also constantly increasing. Image data, as an intuitive data source, plays an increasingly important role in data support.

[0005] Aerospace equipment generally has the characteristics of limited space, precious energy consumption and limited bandwidth. Therefore, the image acquisition system must minimize power consumption while ensuring image quality, and it is expected to work for a long time, and minimize the bit rate, hoping to save storage space and reduce bandwidth utilization.

[0006] With the development of science and technology, various electrical appliances emerge in an endless stream, and the issue of electrical safety has received great attention from people. In today's society, since most people have weak safety awareness, they forget to turn off the power of electrical appliances when they leave them, and leave them connected for a long time. Leaving the power of electrical appliances connected for a long time may damage the appliances, and in serious cases, it may cause a fire, resulting in serious loss of life and property. Such incidents often occur in real life.

[0007] At present, the only way to solve such problems is to increase publicity efforts and improve people's self-consciousness and awareness of electricity safety. However, due to the instability of subjective consciousness, the problem of electricity safety still cannot be well solved.

[0008] Therefore, there is an urgent need for an intelligent device to help people reduce waste and reduce the occurrence of such electricity safety accidents. Utility Model Content

[0009] The technical problem to be solved by the utility model is to provide a camera that can automatically switch on and off in response to the shortcomings of the background technology, determine the presence or absence of a person through images and infrared rays, realize automatic disconnection of the power supply of the smart socket, and then control the operation of the electrical appliances.

[0010] The utility model adopts the following technical solutions to solve the above technical problems:

[0011] A camera capable of automatically turning on and off comprises a camera module, a controller module, an infrared sensor module, a communication module, a storage module, a clock module, an interface module and a switch power supply module; the camera module, the infrared sensor module, the communication module, the storage module, the clock module, the interface module and the switch power supply module are respectively connected to the controller module; the camera module comprises an AR0230CS sensor and an SLVS interface, the storage module comprises a 256Mb Flash module and a 4Gb DDR3 module, the AR0230CS sensor is connected to a main control module via the SLVS interface, and the Flash module and the DDR3 module are respectively connected to the main control module.

[0012] As a further preferred solution of a camera that can automatically switch on and off in the utility model, the switching power supply module includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first inductor, a second inductor, a third inductor, a first diode, a second diode, a Schottky diode, a first transistor, and a second transistor; wherein, the live wire L end is connected to one end of the first resistor, the other end of the first resistor is connected to one end of the first capacitor, one end of the second resistor, one end of the third resistor, and one end of the first inductor, the other end of the first capacitor is respectively connected to the positive electrode of the first diode and grounded, the negative electrode of the first diode is connected to the neutral wire N end, the other end of the second resistor is connected to the collector of the first transistor, and the other end of the third resistor is respectively connected to the collector of the first transistor. The other end of the first inductor and the collector of the second transistor, the base of the first transistor are respectively connected to one end of the fifth resistor and one end of the fourth resistor, the other end of the fifth resistor is connected to the positive electrode of the Schottky diode, the negative electrode of the Schottky diode is respectively connected to one end of the third capacitor, one end of the seventh resistor, and one end of the second inductor, the other end of the third capacitor is respectively connected to the other end of the seventh resistor, the emitter of the first transistor and grounded, the other end of the second inductor is connected to the negative electrode of the third diode and one end of the tenth resistor, the other end of the tenth resistor is connected to the other end of the second capacitor, the positive electrode of the third diode is grounded, one end of the third inductor is respectively connected to one end of the fourth capacitor, one end of the ninth resistor, and the 5V positive output end, the other end of the fourth capacitor is respectively connected to the positive electrode of the second diode, the other end of the ninth resistor, and the 5V negative output end, and the negative electrode of the second diode is connected to the other end of the third inductor.

[0013] As a further preferred embodiment of a camera that can be automatically turned on and off in the utility model, the infrared sensor module includes a resistor R5, a resistor R6, a sliding rheostat RV1, a voltage comparator Q1, and an infrared photoelectric module U3; wherein, one end of the resistor R5 is connected to pin 1 of the infrared photoelectric module U3, the other end of the resistor R5 is respectively connected to one end of the resistor R6 and the positive power supply end of the voltage comparator Q1, pin 2 of the infrared photoelectric module U3 is grounded, pin 4 of the infrared photoelectric module U3 is grounded, pin 5 of the infrared photoelectric module U3 is respectively connected to the other end of the resistor R6 and the non-inverting input end of the voltage comparator Q1, the inverting input end of the voltage comparator Q1 is connected to pin 1 of the sliding rheostat RV1, pin 2 of the sliding rheostat RV1 is connected to the VCC end, pin 3 of the sliding rheostat RV1 is connected to the negative power supply end of the voltage comparator Q1, and the output end of the voltage comparator Q1 is connected to GD.

[0014] As a further preferred solution of the utility model of a camera that can automatically turn on and off, it also includes a signal conditioning module and a voltage divider follower filter unit. The infrared sensor module is connected to the controller module through the signal conditioning module and the voltage divider follower filter unit in sequence.

[0015] As a further preferred solution of a camera that can automatically turn on and off in the utility model, the signal conditioning module includes an analog signal input end, a resistor R1, a resistor R2, a capacitor C1, and an operational amplifier U1. The analog signal input end is respectively connected to one end of the resistor R1 and one end of the resistor R2, the other end of the resistor R2 is connected to one end of the capacitor C1, the other end of the capacitor C1 is respectively connected to the other end of the resistor R1 and the positive input end of the operational amplifier U1, and the negative input end of the operational amplifier U1 is connected to the output end of the operational amplifier U1.

[0016] As a further preferred solution of a camera that can automatically turn on and off in the utility model, the voltage divider follower filter unit includes an operational amplifier U3, a resistor R11, a resistor R12, an operational amplifier U4, a resistor R13, and a capacitor C7. The output end of the operational amplifier U3 is connected to one end of the resistor R12, and the other end of the resistor R12 is respectively connected to one end of the resistor R11 and the positive input end of the operational amplifier U4. The output end of the operational amplifier U4 is connected to one end of the resistor R13, and the other end of the resistor R13 is respectively connected to one end of the capacitor C7 and the A / D conversion unit. The other end of the capacitor C7 is grounded, and the other end of the resistor R11 is connected to the signal conditioning module.

[0017] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0018] 1. The utility model discloses a camera that can be automatically turned on and off, comprising a camera module, a controller module, an infrared sensor module, a communication module, a storage module, a clock module, an interface module, and a switch power supply module; the camera module comprises an AR0230CS sensor and an SLVS interface, and the storage module comprises a 256Mb Flash module and a 4Gb DDR3 module. The camera module determines the state of a person's stay or departure through images and infrared rays, realizes the automatic disconnection of the power supply of the smart socket, and then controls the operation of the electrical appliances;

[0019] 2. The utility model is a camera that can automatically turn on and off. It processes the signal through signal conditioning, voltage following and anti-aliasing filtering, analyzes the link establishment time, and then uses a successive approximation AD chip for conversion. The data collection accuracy is verified by cooperating with the host computer, and the circuit design is optimized. A detailed performance test is carried out on it. Compared with the traditional test system, the collected signal is more accurate, stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a structural principle diagram of a camera capable of automatic switching on and off according to the utility model;

[0022] Figure 2 It is a circuit diagram of the switching power supply module of the utility model;

[0023] Figure 3 It is a circuit diagram of the infrared sensor module of the utility model;

[0024] Figure 4 It is a circuit diagram of the signal conditioning module of the utility model;

[0025] Figure 5 The utility model is a circuit diagram of a voltage-dividing follower filtering unit. DETAILED DESCRIPTION

[0026] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings:

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] A camera that can be turned on and off automatically, such as Figure 1 As shown, it includes a camera module, a controller module, an infrared sensor module, a communication module, a storage module, a clock module, an interface module, and a switch power module; the camera module, the infrared sensor module, the communication module, the storage module, the clock module, the interface module, and the switch power module are connected to the controller module respectively; the camera module includes an AR0230CS sensor and an SLVS interface, the storage module includes a 256Mb Flash module and a 4Gb DDR3 module, the AR0230CS sensor is connected to the main control module via the SLVS interface, and the Flash module and the DDR3 module are connected to the main control module respectively. It also includes a signal conditioning module and a voltage-dividing follower filter unit, and the infrared sensor module is connected to the controller module through the signal conditioning module and the voltage-dividing follower filter unit in turn.

[0029] The image acquisition module of this utility model adopts the high dynamic and low power consumption AR0230CS sensor, and sends the image data to the main control module through the SLVS interface. It has a high dynamic range of 96dB, a high signal-to-noise ratio of 41dB, and a maximum output capacity of 1080P@60fps.

[0030] The main control module of the utility model adopts the Hi3516D chip of the domestic HiSilicon company. It receives data from the CMOS image acquisition module through the MIPI manager, optimizes the processing, and compresses the H264 encoding. It outputs it to the RS422 wireless communication circuit through the USRT interface. The chip is triggered by advanced low-power technology and low-power architecture, and adopts the ARM Cortex A7 core, with a maximum output capacity of 1080P@60fps.

[0031] like Figure 2As shown, the switching power supply module includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first inductor, a second inductor, a third inductor, a first diode, a second diode, a Schottky diode, a first transistor, and a second transistor; wherein, the live wire L end is connected to one end of the first resistor, the other end of the first resistor is connected to one end of the first capacitor, one end of the second resistor, one end of the third resistor, and one end of the first inductor, the other end of the first capacitor is respectively connected to the positive electrode of the first diode and grounded, the negative electrode of the first diode is connected to the neutral wire N end, the other end of the second resistor is connected to the collector of the first transistor, and the other end of the third resistor is respectively connected to the other end of the first inductor, the second transistor The collector of the tube, the base of the first triode is respectively connected to one end of the fifth resistor and one end of the fourth resistor, the other end of the fifth resistor is connected to the positive electrode of the Schottky diode, the negative electrode of the Schottky diode is respectively connected to one end of the third capacitor, one end of the seventh resistor, and one end of the second inductor, the other end of the third capacitor is respectively connected to the other end of the seventh resistor and the emitter of the first triode and grounded, the other end of the second inductor is connected to the negative electrode of the third diode and one end of the tenth resistor, the other end of the tenth resistor is connected to the other end of the second capacitor, the positive electrode of the third diode is grounded, one end of the third inductor is respectively connected to one end of the fourth capacitor, one end of the ninth resistor, and the 5V positive output terminal, the other end of the fourth capacitor is respectively connected to the positive electrode of the second diode, the other end of the ninth resistor, and the 5V negative output terminal, and the negative electrode of the second diode is connected to the other end of the third inductor

[0032] like Figure 3 As shown, the infrared sensor module includes a resistor R5, a resistor R6, a sliding rheostat RV1, a voltage comparator Q1, and an infrared photoelectric module U3; wherein, one end of the resistor R5 is connected to pin 1 of the infrared photoelectric module U3, the other end of the resistor R5 is respectively connected to one end of the resistor R6 and the positive power supply end of the voltage comparator Q1, the pin 2 of the infrared photoelectric module U3 is grounded, the pin 4 of the infrared photoelectric module U3 is grounded, the pin 5 of the infrared photoelectric module U3 is respectively connected to the other end of the resistor R6 and the non-inverting input end of the voltage comparator Q1, the inverting input end of the voltage comparator Q1 is connected to pin 1 of the sliding rheostat RV1, the pin 2 of the sliding rheostat RV1 is connected to the VCC end, the pin 3 of the sliding rheostat RV1 is connected to the negative power supply end of the voltage comparator Q1, and the output end of the voltage comparator Q1 is connected to GD.

[0033] like Figure 4As shown, the signal conditioning module includes an analog signal input terminal, a resistor R1, a resistor R2, a capacitor C1, and an operational amplifier U1. The analog signal input terminal is respectively connected to one end of the resistor R1 and one end of the resistor R2, the other end of the resistor R2 is connected to one end of the capacitor C1, the other end of the capacitor C1 is respectively connected to the other end of the resistor R1 and the positive input terminal of the operational amplifier U1, and the negative input terminal of the operational amplifier U1 is connected to the output terminal of the operational amplifier U1.

[0034] In the conditioning circuit, the rail-to-rail op amp can maximize the input and output voltage swings close to the power supply voltage value, but there is also a large deviation under high current conditions. Since the input voltage range of AD8608 is 0-0.5V, resistors R3 and R5 are set to form a voltage divider circuit to reduce the input voltage to below 5V.

[0035] According to the size of the current and the difference between AC and DC, the corresponding current collection methods are also different. Commonly used current collection methods include coaxial shunt method, current transformer method, Rogowski coil method, Hall sensor method and sampling resistor method, etc. The Hall sensor method is suitable for measuring both AC and DC currents, and can measure large currents. The signal conditioning module uses the ACS714 chip of Allegro, which is a current-isolated current sensor with common-mode suppression field effect, composed of high-precision low-bias linear Hall sensors.

[0036] like Figure 5 As shown, the voltage-dividing follower filtering unit includes an operational amplifier U3, a resistor R11, a resistor R12, an operational amplifier U4, a resistor R13, and a capacitor C7. The output end of the operational amplifier U3 is connected to one end of the resistor R12, and the other end of the resistor R12 is respectively connected to one end of the resistor R11 and the positive input end of the operational amplifier U4. The output end of the operational amplifier U4 is connected to one end of the resistor R13, and the other end of the resistor R13 is respectively connected to one end of the capacitor C7 and the A / D conversion unit. The other end of the capacitor C7 is grounded, and the other end of the resistor R11 is connected to the signal conditioning module.

[0037] As the key component of the conditioning circuit, the utility model selects the AD8608 operational amplifier chip of ADI Company. The chip combines many excellent characteristics, has four-rail input and output while being powered by a single power supply, and can ensure high speed while also ensuring extremely low noise and input bias current, and is widely applicable to various circuits;

[0038] Since the input impedance of the op amp is generally very high, it is very susceptible to external interference when the input pin is left floating. Therefore, setting the resistor R2 can form a loop between the input end and the analog ground when the input pin is left floating, thereby ensuring the stability of the op amp.

[0039] like Figure 5As shown, the power module includes a chip U1, a power supply B1, a capacitor C1, a capacitor C2, an inductor L1, and a Zener diode D1; wherein, pin 1 of the chip U1 is respectively connected to the positive electrode of the power supply B1 and one end of the capacitor C1, the negative electrode of the power supply B1 is grounded, the other end of the capacitor C1 is grounded, pin 3 of the chip U1 is grounded, pin 5 of the chip U1 is grounded, pin 2 of the chip U1 is respectively connected to the negative electrode of the Zener diode D1 and one end of the inductor L1, the positive electrode of the Zener diode is grounded, the other end of the inductor L1 is respectively connected to one end of the capacitor C2, pin 4 of the chip U1 and the Output output end, and the other end of the capacitor C2 is grounded.

[0040] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of ordinary technicians in the field to which the utility model belongs. It should also be understood that those terms such as those defined in general dictionaries should be understood to have the same meaning as the meaning in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0041] The above embodiments are only for explaining the technical idea of ​​the utility model, and cannot be used to limit the protection scope of the utility model. Any changes made on the basis of the technical solution according to the technical idea proposed by the utility model shall fall within the protection scope of the utility model. The above embodiments of the utility model are described in detail, but the utility model is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the utility model.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A camera capable of automatically turning on and off, characterized in that: It comprises a camera module, a controller module, an infrared sensor module, a communication module, a storage module, a clock module, an interface module and a switching power supply module; the camera module, the infrared sensor module, the communication module, the storage module, the clock module, the interface module and the switching power supply module are respectively connected to the controller module; the camera module comprises an AR0230CS sensor and an SLVS interface, the storage module comprises a 256Mb Flash module and a 4Gb DDR3 module, the AR0230CS sensor is connected to the main control module via the SLVS interface, and the Flash module and the DDR3 module are respectively connected to the main control module.

2. A camera capable of automatically turning on and off according to claim 1, characterized in that: The switching power supply module includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first inductor, a second inductor, a third inductor, a first diode, a second diode, a Schottky diode, a first transistor, and a second transistor; wherein, the live wire L end is connected to one end of the first resistor, the other end of the first resistor is connected to one end of the first capacitor, one end of the second resistor, one end of the third resistor, and one end of the first inductor, the other end of the first capacitor is respectively connected to the positive electrode of the first diode and grounded, the negative electrode of the first diode is connected to the neutral wire N end, the other end of the second resistor is connected to the collector of the first transistor, the other end of the third resistor is respectively connected to the other end of the first inductor, the The collector, the base of the first transistor are respectively connected to one end of the fifth resistor and one end of the fourth resistor, the other end of the fifth resistor is connected to the positive electrode of the Schottky diode, the negative electrode of the Schottky diode is respectively connected to one end of the third capacitor, one end of the seventh resistor, and one end of the second inductor, the other end of the third capacitor is respectively connected to the other end of the seventh resistor, the emitter of the first transistor and grounded, the other end of the second inductor is connected to the negative electrode of the third diode and one end of the tenth resistor, the other end of the tenth resistor is connected to the other end of the second capacitor, the positive electrode of the third diode is grounded, one end of the third inductor is respectively connected to one end of the fourth capacitor, one end of the ninth resistor, and the 5V positive output terminal, the other end of the fourth capacitor is respectively connected to the positive electrode of the second diode, the other end of the ninth resistor, and the 5V negative output terminal, and the negative electrode of the second diode is connected to the other end of the third inductor.

3. The camera capable of automatically turning on and off according to claim 1, characterized in that: The infrared sensor module includes a resistor R5, a resistor R6, a sliding rheostat RV1, a voltage comparator Q1, and an infrared photoelectric module U3; wherein, one end of the resistor R5 is connected to pin 1 of the infrared photoelectric module U3, the other end of the resistor R5 is respectively connected to one end of the resistor R6 and the positive power supply end of the voltage comparator Q1, pin 2 of the infrared photoelectric module U3 is grounded, pin 4 of the infrared photoelectric module U3 is grounded, pin 5 of the infrared photoelectric module U3 is respectively connected to the other end of the resistor R6 and the non-inverting input end of the voltage comparator Q1, the inverting input end of the voltage comparator Q1 is connected to pin 1 of the sliding rheostat RV1, pin 2 of the sliding rheostat RV1 is connected to the VCC end, pin 3 of the sliding rheostat RV1 is connected to the negative power supply end of the voltage comparator Q1, and the output end of the voltage comparator Q1 is connected to GD.

4. The camera capable of automatically turning on and off according to claim 1, characterized in that: It also includes a signal conditioning module and a voltage-dividing follower filtering unit. The infrared sensor module is connected to the controller module through the signal conditioning module and the voltage-dividing follower filtering unit in sequence.

5. The camera capable of automatically turning on and off according to claim 4, characterized in that: The signal conditioning module includes an analog signal input terminal, a resistor R1, a resistor R2, a capacitor C1, and an operational amplifier U1. The analog signal input terminal is respectively connected to one end of the resistor R1 and one end of the resistor R2, the other end of the resistor R2 is connected to one end of the capacitor C1, the other end of the capacitor C1 is respectively connected to the other end of the resistor R1 and the positive input terminal of the operational amplifier U1, and the negative input terminal of the operational amplifier U1 is connected to the output terminal of the operational amplifier U1.

6. The camera capable of automatically turning on and off according to claim 4, characterized in that: The voltage divider follower filter unit includes an operational amplifier U3, a resistor R11, a resistor R12, an operational amplifier U4, a resistor R13, and a capacitor C7. The output end of the operational amplifier U3 is connected to one end of the resistor R12, and the other end of the resistor R12 is respectively connected to one end of the resistor R11 and the positive input end of the operational amplifier U4. The output end of the operational amplifier U4 is connected to one end of the resistor R13, and the other end of the resistor R13 is respectively connected to one end of the capacitor C7 and the A / D conversion unit. The other end of the capacitor C7 is grounded, and the other end of the resistor R11 is connected to the current signal conditioning module.

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