Microwave infrared detection device

Abstract

The utility model discloses a microwave infrared detection device, which comprises a control module, an infrared module, a microwave module, a signal indication module, a network card module and a power supply module, the infrared module is connected to a first end of the control module, and the microwave module is connected to a second end of the control module; the signal indication module is connected to a third end of the control module, and the network card module is connected to a fourth end of the control module; and the power supply module is used for supplying power to the control module, the infrared module, the microwave module, the signal indication module and the network card module. The device can effectively reduce the false alarm rate of infrared detection and improve the detection sensitivity of infrared detection. The microwave infrared detection device can effectively reduce the false alarm rate of infrared detection and improve the detection sensitivity of infrared detection. The utility model relates to the technical field of infrared detection.

Description

TECHNICAL FIELD

[0001] The utility model relates to infrared detection technical field especially a microwave infrared detection device. BACKGROUND

[0002] At present, the prior art is usually directly based on infrared detector to capture the heat radiation generated by heat source (such as human body organism), but since the infrared detector needs to detect the temperature change of heat source, it is easily disturbed by various factors (such as environmental heat source, environmental obstacles, etc.) of external environment, thereby false alarm phenomenon appears, and the false alarm rate of infrared detector is high and the detection sensitivity is unsatisfactory.

[0003] Therefore, the problems of the prior art still need to be solved and optimized. INNOVATIVE CONTENT

[0004] The utility model discloses a microwave infrared detection device, which can effectively reduce the false alarm rate of infrared detection and improve the detection sensitivity of infrared detection.

[0005] Therefore, the utility model embodiment provides a microwave infrared detection device, which can effectively reduce the false alarm rate of infrared detection and improve the detection sensitivity of infrared detection.

[0006] In order to achieve the above technical purpose, the utility model embodiment provides a microwave infrared detection device, which comprises a control module, an infrared module, a microwave module, a signal indication module, a network card module and a power module.

[0007] The infrared module is connected to the first end of the control module, and the microwave module is connected to the second end of the control module.

[0008] The signal indication module is connected to the third end of the control module, and the network card module is connected to the fourth end of the control module.

[0009] The power module is used to supply power to the control module, the infrared module, the microwave module, the signal indication module and the network card module.

[0010] In addition, the utility model embodiment also has the following additional technical features:

[0011] Optionally, in an embodiment of the utility model, the network card module comprises an electrostatic protection unit and a mobile network unit.

[0012] The first end of the electrostatic protection unit is connected to the fourth end of the control module, and the second end of the electrostatic protection unit is connected to the mobile network unit.

[0013] Optionally, in one embodiment of the utility model, the static protection unit includes static protection chip, static protection chip is connected to the fourth end of control module.

[0014] Optionally, in one embodiment of the utility model, the mobile network unit includes network card connector, network card connector is connected to the second end of static protection unit.

[0015] Optionally, in one embodiment of the utility model, the infrared module includes infrared detection unit and infrared connection unit;

[0016] The first end of the infrared connection unit is connected to the control module, and the second end of the infrared connection unit is connected to the infrared detection unit.

[0017] Optionally, in one embodiment of the utility model, the infrared connection unit includes a first resistor, a second resistor and a first triode;

[0018] The collector of the first triode is connected to the first end of the control module, the base of the first triode is connected to the first end of the first resistor, and the second end of the first resistor is connected to the infrared detection unit;

[0019] The first end of the second resistor is connected to the first end of the first resistor, and the second end of the second resistor is connected to the emitter of the first triode.

[0020] Optionally, in one embodiment of the utility model, the infrared detection unit includes an infrared sensor chip, and the infrared sensor chip is connected to the second end of the infrared connection unit.

[0021] Optionally, in one embodiment of the utility model, the control module includes a master control chip, and the master control chip is connected to the network card module.

[0022] Optionally, in one embodiment of the utility model, the control module further includes an antenna unit, and the antenna unit is connected to the master control chip.

[0023] Optionally, in one embodiment of the utility model, the signal indication module includes a plurality of signal subunits, the signal subunit includes a third resistor, a fourth resistor, a light emitting diode and a second triode;

[0024] The anode of the light emitting diode is connected to the power module through the third resistor, and the cathode of the light emitting diode is connected to the collector of the second triode.

[0025] The emitter of the second triode is grounded, and the base of the second triode is connected to the fourth resistor.

[0026] The advantages and beneficial effects of the utility model will be partially given in the following description, some will become obvious from the following description, or will be understood through the practice of the utility model:

[0027] The microwave infrared detection device disclosed by the embodiment of the application comprises a control module, an infrared module, a microwave module, a signal indication module, a network card module and a power module; the infrared module is connected to a first end of the control module, and the microwave module is connected to a second end of the control module; the signal indication module is connected to a third end of the control module, and the network card module is connected to a fourth end of the control module; and the power module is used for supplying power to the control module, the infrared module, the microwave module, the signal indication module and the network card module. The microwave infrared detection device detects moving objects in the external environment through the microwave module and detects heat sources (such as human bodies, animal bodies and other biological bodies and non-biological bodies such as heat generating equipment) in the external environment through the infrared module, so that the false positive rate of infrared detection can be reduced and the detection sensitivity of infrared detection can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings are used to provide a further understanding of the technical scheme of the application, and constitute a part of the specification, and are used together with the embodiments of the application to explain the technical scheme of the application, and do not constitute a limitation on the technical scheme of the application.

[0029] Figure 1 A frame principle diagram of a microwave infrared detection device is provided for an embodiment of the utility model;

[0030] Figure 2 A circuit principle diagram of a power module is provided for an embodiment of the utility model;

[0031] Figure 3 A circuit principle diagram of an electrostatic protection unit is provided for an embodiment of the utility model;

[0032] Figure 4 A circuit principle diagram of a mobile network unit is provided for an embodiment of the utility model;

[0033] Figure 5 A circuit principle diagram of an infrared connection unit is provided for an embodiment of the utility model;

[0034] Figure 6 A circuit principle diagram of an infrared detection unit is provided for an embodiment of the utility model;

[0035] Figure 7 A circuit principle diagram of a control module is provided for an embodiment of the utility model;

[0036] Figure 8 A circuit principle diagram of an antenna unit is provided for an embodiment of the present application.

[0037] Figure 9 A signal subunit circuit principle diagram is provided for an embodiment of the present application. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0039] In the description of the present application, it is understood that the terms "length", "upper", "lower", "front", "back", "left", "right", "top", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features limited as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0040] At present, the prior art is usually directly based on an infrared detector to capture the heat radiation generated by a heat source (such as a human body organism), but since the infrared detector needs to detect the temperature change of the heat source, it is easily disturbed by various factors of the external environment (such as environmental heat sources, environmental obstacles, etc.), thereby false positives occur, the false positive rate of the infrared detector is high and the detection sensitivity is not satisfactory. In addition, the existing infrared detector usually realizes communication with external devices through a wireless hotspot network (WiFi), and in the case of large fluctuations of the wireless hotspot network, several infrared detectors under the wireless hotspot network with large fluctuations may not be able to communicate data with external devices, and the stability of the wireless hotspot network is greatly dependent.

[0041] Therefore, the microwave infrared detection device provided in the application embodiment can reduce the false positive rate of infrared detection and improve the detection sensitivity of infrared detection. In addition, the microwave infrared detection device also realizes data communication transmission of external equipment through the network card module, which can improve the stability of communication between the microwave infrared detection device and external equipment, reduce the dependence of the infrared detector on the wireless hotspot network, and effectively avoid the situation that one or more infrared detectors cannot perform data communication transmission with external equipment in a wireless hotspot network with large fluctuations.

[0042] With reference to Figure 1 Specifically, the microwave infrared detection device provided in the application embodiment comprises a control module, an infrared module, a microwave module, a signal indication module, a network card module, and a power module.

[0043] The infrared module is connected to a first end of the control module, and the microwave module is connected to a second end of the control module.

[0044] The signal indication module is connected to a third end of the control module, and the network card module is connected to a fourth end of the control module.

[0045] The power module is configured to supply power to the control module, the infrared module, the microwave module, the signal indication module, and the network card module.

[0046] In the application embodiment, the infrared module, the microwave module, the signal indication module, and the network card module are respectively connected to the control module, and the power module supplies power to the control module, the infrared module, the microwave module, and the signal indication module. The infrared module is configured to perform infrared detection on a heat source object; the microwave module is configured to perform microwave detection on a moving object; the signal indication module is configured to indicate whether the mobile network connection of the microwave infrared detection device is normal; and the network card module is configured to realize mobile network communication connection between the microwave infrared detection device and external equipment.

[0047] It can be understood that the microwave module in the embodiments of the present application can be an RCWL-0516 microwave radar module or an RCWL-0515 microwave radar module, or other microwave radar modules with microwave detection function, and the present application does not limit the specific module type of the microwave module. Specifically, the embodiments of the present application take the RCWL-0516 microwave radar module as an example. The RCWL-0516 microwave radar module is based on microwave Doppler radar technology. It transmits microwave signals and receives microwave signals reflected by objects. When the RCWL-0516 microwave radar module detects a change in the frequency of the reflected microwave signals, it can provide a trigger action signal to the control module.

[0048] Reference Figure 2 It should be noted that the power module in the embodiments of the present application includes a power isolation unit 210, a chip power supply unit 220 and a step-down power supply unit 230. The output end of the power isolation unit 210 is connected to the input end of the chip power supply unit 220, and the output end of the chip power supply unit 220 is connected to the step-down power supply unit 230. The power isolation unit 210 is used to achieve electrical isolation between the external power supply (such as 220V mains) and the microwave infrared detection device. The chip power supply unit 220 and the step-down power supply unit 230 are used to provide appropriate power supply for each module in the microwave infrared detection device.

[0049] Exemplarily, the working principle of the microwave infrared detection device provided by the embodiments of the present application is as follows:

[0050] When the control module realizes normal mobile network connection with external devices through the network card module, the control module drives the signal indication module to work normally; or when the mobile network connection between the control module and the external device is abnormal, the control module drives the signal indication module to work abnormally. At the same time, the infrared module and the microwave module detect the external environment in real time. The infrared module transmits the detected infrared detection signal to the control module, and the microwave module transmits the detected microwave detection signal to the control module. Then, the control module removes the incorrect infrared detection data caused by environmental factors such as external environment temperature, airflow, environmental obstacles, etc. in real time according to the received microwave module, and transmits the correct infrared detection data to the external device through the network card module.

[0051] It is worth mentioning that the microwave infrared detection device does not involve any improvement in software, and the software content can be simply obtained according to the prior art.

[0052] In some embodiments, the network card module includes an electrostatic protection unit and a mobile network unit.

[0053] The first end of the electrostatic protection unit is connected to the fourth end of the control module, and the second end of the electrostatic protection unit is connected to the mobile network unit.

[0054] Referring to Figure 3 In some embodiments, the electrostatic protection unit includes an electrostatic protection chip D2 connected to the fourth end of the control module.

[0055] Referring to Figure 4 In some embodiments, the mobile network unit includes a network card connector J1 connected to the second end of the electrostatic protection unit.

[0056] In the embodiments of the present application, the electrostatic protection unit is used to protect sensitive electronic elements in the mobile network unit from electrostatic discharge (ESD) damage, which specifically includes an electrostatic protection chip D2, which can be any one of an SRV05-4 chip, an RCLAMP2504P chip, an RCLAMP3304P chip, etc., or other electrostatic protection chips D2 with transient voltage suppression function. Specifically, the electrostatic protection chip D2 in the embodiments of the present application takes the SRV05-4 chip as an example, and the working logic of the electrostatic protection chip D2 is that when electrostatic discharge occurs, the electrostatic protection chip D2 will guide the excessively high voltage to the ground end, thereby limiting the voltage of other sensitive electronic elements in the mobile network unit, preventing damage, and then when the electrostatic discharge ends, the electrostatic protection chip D2 will return to the normal working state, ensuring the normal operation of the mobile network unit.

[0057] It can be understood that the mobile network unit can include a network card connector J1 used as a card seat of a SIM card, so that the control module can realize mobile network connection with external devices based on the mobile network unit. Specifically, the network card connector J1 can be a SIM-002-P6 connector or a SIM-200-P6 connector, or other connectors with the function of a SIM card seat.

[0058] In some embodiments, the infrared module includes an infrared detection unit and an infrared connection unit;

[0059] The first end of the infrared connection unit is connected to the control module, and the second end of the infrared connection unit is connected to the infrared detection unit.

[0060] Referring to Figure 5 In some embodiments, the infrared connection unit includes a first resistor R14, a second resistor R17, and a first triode Q2.

[0061] The collector of the first triode Q2 is connected to the first end of the control module, the base of the first triode Q2 is connected to the first end of the first resistor R14, and the second end of the first resistor R14 is connected to the infrared detection unit;

[0062] The first end of the second resistor R17 is connected to the first end of the first resistor R14, and the second end of the second resistor R17 is connected to the emitter of the first triode Q2.

[0063] Referring to Figure 6 In some embodiments, the infrared detection unit includes an infrared sensor chip U2 connected to the second end of the infrared connection unit.

[0064] In the embodiments of the present application, the infrared detection unit is connected to the control module through the infrared connection unit. Specifically, the infrared sensor chip U2 in the infrared detection unit receives a weak infrared signal from the pyroelectric infrared sensor U7, amplifies and compares the signal through the infrared sensor chip U2, and then transmits the detected infrared detection signal to the control module through the infrared connection unit.

[0065] Specifically, the pyroelectric infrared sensor U7 in the embodiments of the present application can be any one of an HM312 infrared probe, an HM412 infrared probe, an HM612 infrared probe, a BS612 infrared probe, etc., or other sensors with infrared functions. In addition, the infrared sensor chip U2 can be any one of an RC664102-010 chip, an RC664102-003 chip, an SJ0001 chip, an EG4002C chip, an EG0002 chip, a BISS0001 chip, etc., or other IC chips with infrared processing functions.

[0066] Referring to Figure 7 In some embodiments, the control module includes a master control chip U1A connected to the network card module.

[0067] Referring to Figure 8 In some embodiments, the control module further includes an antenna unit connected to the master control chip U1A.

[0068] In the embodiments of the present application, the control module can include a master control chip U1A. When the master control chip U1A is working normally, the master control chip U1A can realize mobile network communication connection with external devices based on the network card module through the internal radio frequency circuit, etc. Specifically, the master control chip U1A in the embodiments of the present application can be any one of an Air724UG chip, an EC20 chip, an EC25 chip, etc., or other master control chips U1A with mobile network connection functions. The present application examples are only for illustration.

[0069] It can be understood that the antenna unit is used for receiving signals transmitted by external equipment to the microwave infrared detection device, and transmitting the infrared detection signals detected by the infrared detection module and the microwave signals detected by the microwave module to the external equipment, and the antenna unit can specifically realize signal data transmission between the microwave infrared detection device and the external equipment through the master control chip U1A.

[0070] With reference to Figure 9 In some embodiments, the signal indication module includes a plurality of signal subunits, and the signal subunit includes a third resistor R5, a fourth resistor R6, a light emitting diode LED1 and a second triode Q1.

[0071] The anode of the light emitting diode LED1 is connected to the power module through the third resistor R5, and the cathode of the light emitting diode LED1 is connected to the collector of the second triode Q1.

[0072] The emitter of the second triode Q1 is grounded, and the base of the second triode Q1 is connected to the fourth resistor R6.

[0073] In the embodiments of the present application, for a certain signal subunit, when the mobile network connection between the microwave infrared detection device and the external equipment is normal, the control module can provide a driving signal to the base of the second triode Q1 through the fourth resistor R6, so that the second triode Q1 is switched from the cut-off state to the conducting state, and the light emitting diode LED1 works normally; or when the mobile network connection between the microwave infrared detection device and the external equipment is abnormal, the control module does not provide a driving signal to the base of the second triode Q1 through the fourth resistor R6, and the second triode Q1 remains in the cut-off state, and the light emitting diode LED1 does not work, so as to indicate whether the mobile network connection between the microwave infrared detection device and the external equipment is normal.

[0074] It can be understood that Figure 9 is a signal subunit for indicating whether the mobile network connection between the microwave infrared detection device and the external equipment is normal, and other signal subunits in the embodiments of the present application can also indicate whether the infrared module and the microwave module work normally, and specifically, the control module can provide a driving signal to the corresponding signal subunit when receiving the infrared detection signal or the microwave detection signal, which will not be described here.

[0075] In the description of the present specification, the description referring to the terms "one embodiment", "another embodiment" or "certain embodiments" or the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0076] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A microwave infrared detection device, characterized by, The control module, the infrared module, the microwave module, the signal indication module, the network card module and the power module are included. The infrared module is connected to the first end of the control module, and the microwave module is connected to the second end of the control module. The signal indication module is connected to the third end of the control module, and the network card module is connected to the fourth end of the control module. The power module is used for supplying power to the control module, the infrared module, the microwave module, the signal indication module and the network card module. The network card module includes an electrostatic protection unit and a mobile network unit. The first end of the electrostatic protection unit is connected to the fourth end of the control module, and the second end of the electrostatic protection unit is connected to the mobile network unit. The mobile network unit includes a network card connector connected to the second end of the electrostatic protection unit.

2. The microwave infrared detection device of claim 1, wherein, The electrostatic protection unit includes an electrostatic protection chip connected to the fourth end of the control module.

3. The microwave infrared detection device of claim 1, wherein, The infrared module includes an infrared detection unit and an infrared connection unit. The first end of the infrared connection unit is connected to the control module, and the second end of the infrared connection unit is connected to the infrared detection unit.

4. The microwave infrared detection device of claim 3, wherein, The infrared connection unit includes a first resistor, a second resistor and a first triode. The collector of the first triode is connected to the first end of the control module, the base of the first triode is connected to the first end of the first resistor, and the second end of the first resistor is connected to the infrared detection unit. The first end of the second resistor is connected to the first end of the first resistor, and the second end of the second resistor is connected to the emitter of the first triode.

5. The microwave infrared detection device of claim 3, wherein, The infrared detection unit includes an infrared sensor chip connected to the second end of the infrared connection unit.

6. The microwave infrared detection device of claim 1, wherein, The control module includes a master control chip connected to the network card module.

7. The microwave infrared detection device of claim 6, wherein, The control module further includes an antenna unit connected to the master control chip.

8. The microwave infrared detection device of claim 1, wherein, The signal indication module includes a plurality of signal subunits, and the signal subunit includes a third resistor, a fourth resistor, a light emitting diode and a second triode. The anode of the light emitting diode is connected to the power module through the third resistor, and the cathode of the light emitting diode is connected to the collector of the second triode. The emitter of the second triode is grounded, and the base of the second triode is connected to the fourth resistor.

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