CN211406151U

CN211406151U - Video monitoring equipment

Info

Publication number: CN211406151U
Application number: CN202020796361.2U
Authority: CN
Inventors: 王伟; 黄昌娥; 黄昌华
Original assignee: Sanya Longteng Qiankun Electronic Technology Co ltd
Current assignee: Sanya Longteng Qiankun Electronic Technology Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-09-01
Anticipated expiration: 2030-05-14

Abstract

A video monitoring device comprises a video monitoring device body, a solar cell panel, a storage battery, a support column, an installation shell, a pyroelectric infrared detection module, a mobile phone remote control module and a short message module, wherein the support column is installed in a monitoring area and is also provided with a rotating mechanism; the rotating mechanism comprises motor speed reducing equipment and a metal bearing, the rotating mechanism is arranged on a support column, an upper support plate is arranged at the upper end of the motor speed reducing equipment, the mounting shell is arranged on the upper support plate, the GPRS module and the camera are arranged in the mounting shell together, an element box B is arranged at the lower part of the upper support plate, and the solar cell panel is arranged on the element box B; the storage battery, the mobile phone remote control module and the short message module are arranged in the element box B and are electrically connected with the motor speed reduction equipment, the solar cell panel and the pyroelectric infrared detection module, and the pyroelectric infrared detection modules are arranged around the support column at the lower end of the element box B. This novel protection that can play good effect to the coral reef.

Description

Video monitoring equipment

Technical Field

The utility model relates to a supervisory equipment technical field, especially a video monitoring equipment.

Background

The existing video monitoring equipment mainly comprises a camera with a night vision function, a GPRS module and the like, and is fixedly arranged above a monitoring area before application. When the remote monitoring system works, the camera carries out continuous and uninterrupted video shooting on a monitored area, video signals are transmitted to a remote user (or transmitted to the remote end through a wired network) in a wireless mode through the GPRS module, and the remote user receives field video data through a PC (personal computer) and the like, so that the aim of remote monitoring is fulfilled.

The existing video monitoring equipment is installed in a fixed mode, the camera is at a fixed angle, so that the requirement can be met for the region fashion which only needs to be monitored before the camera, but when the monitoring is carried out in a 360-degree range for outdoor special places and needs, the actual requirement cannot be met due to the limited visual angle of the camera. For example, the existing video monitoring equipment for preventing illegal mining and monitoring the coral reef can only realize the monitoring of one fixed direction of a local area (the existing video monitoring equipment for protecting coastal coral reefs is generally used for fixing a support column on reefs near the coral reef, then the video monitoring equipment is installed on the support column and video monitoring is carried out on the coral reef at a corresponding position), and under the actual condition, when personnel who steal the coral reef enter the corresponding sea area from dead zones such as the rear end of a camera and the like to steal the coral reef, the video monitoring equipment cannot effectively achieve the video monitoring effect, and the influence is brought to the protection of the coral reef. Moreover, the existing video monitoring equipment applied to coral reef protection cannot give effective prompt to remote monitoring personnel when stealing, so that the monitoring personnel cannot obtain the stealing situation in real time when the monitoring personnel are not on duty at the front end of the PC monitoring screen for various reasons, and the coral reef is protected disadvantageously.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects that the prior video monitoring equipment applied to the coral reef can only realize the video monitoring of the fixed area at the front end of the camera due to the structure limitation, can not realize the video monitoring without dead angles at 360 degrees, and can not prompt the remote monitoring personnel at the first time when stealing situations occur, thereby bringing adverse effects to the protection of the coral reef, the utility model provides a short message module which can prompt the remote monitoring personnel to check the monitoring screen of a PC in time by continuously rotating the camera at 360 degrees and realizing the video monitoring without dead angles on the monitoring area when working under the action of a relevant mechanism, and the remote management personnel can also control the camera to be positioned at a corresponding fixed position in real time through a mobile phone for video monitoring when people approach a certain range in monitoring, and can obtain the on-site stealing situations as far as possible in real time and control the camera to be positioned at a corresponding fixed position for video monitoring in real time, thereby reach good video monitoring effect, a video monitoring equipment that can play good effect to the protection of coral reef.

The utility model provides a technical scheme that its technical problem adopted is:

a video monitoring device comprises a video monitoring device body, a solar cell panel, a storage battery, a support column, an installation shell, a pyroelectric infrared detection module, a mobile phone remote control module and a short message module, wherein the support column is installed in a monitoring area; it is characterized in that the device is also provided with a rotating mechanism; the rotating mechanism comprises a motor speed reducing device and a metal bearing, the motor speed reducing device is arranged at the upper end of the support column, an insulating inner sleeve is arranged on the outer side of a power output shaft of the motor speed reducing device, the insulating inner sleeve is tightly sleeved in an inner ring of the bearing, a guide groove is formed in the outer side of the insulating inner sleeve from top to bottom, an inner lead is arranged on the inner side of the inner ring of the bearing, the inner lead is positioned in the guide groove and led out from the upper end of the guide groove, an insulating outer sleeve is tightly sleeved on the outer side of an outer ring of the bearing, a metal pipe is tightly sleeved on the outer side of; an outer lead is arranged at the outer side end of the outer ring of the bearing; an upper supporting plate is arranged at the upper end of a power output shaft of the motor speed reduction equipment, a mounting shell is mounted at the upper end of the upper supporting plate, the GPRS module and the camera are mounted in the mounting shell together, an element box B is arranged at the lower part of the upper supporting plate, and a solar cell panel is mounted at the upper end of the element box B; the storage battery, the mobile phone remote control module and the short message module are arranged in the element box B, the number of the pyroelectric infrared detection modules is the same, and the pyroelectric infrared detection modules are annularly distributed and arranged around a support column positioned at the lower end of the element box B; the two power supply output ends of the mobile phone remote control module are respectively and electrically connected with the two power supply input ends of the motor speed reducing device; the signal output end of the infrared detection module is electrically connected with the signal input end of the short message module; the positive and negative poles of the storage battery are electrically connected with the two outer leads respectively, and the two inner leads are electrically connected with the camera and two ends of the power input of the GPRS module respectively.

Further, the GPRS module model is ZLAN 8100.

Furthermore, the mobile phone remote control module is a mobile phone remote controller, the mobile phone remote control module is provided with a relay, the relay is connected with the mobile phone remote control module through a circuit board in a wiring mode, two power output ends 3 and 4 pins of the mobile phone remote control module are respectively connected with the positive and negative pole power input ends of the relay, and the positive and negative pole power input ends 1 and 2 pins of the mobile phone remote control module and two control contact ends of the relay are respectively connected.

Furthermore, the pyroelectric infrared detection module is a human body infrared alarm inductive switch, the pyroelectric infrared detection module is matched with a resistor and an NPN triode, the resistor and the NPN triode are installed on a circuit board in the element box B, positive and negative pole power input ends of the plurality of pyroelectric infrared detection modules are respectively electrically connected, power output ends of the plurality of pyroelectric infrared detection modules are electrically connected with one end of the resistor, the other end of the resistor is electrically connected with a base of the NPN triode, and an emitting electrode of the NPN triode is electrically connected with a negative pole power input end of the plurality of pyroelectric infrared detection modules.

Further, the short message module is a short message alarm module.

The utility model has the advantages that: the utility model discloses a video monitoring equipment body and current video monitoring equipment use principle and function are unanimous completely, can transmit far-end user (or transmit the distal end through wired network) through wireless mode with the video data on scene through the GPRS module, and the far-end user receives on-the-spot video data through PC etc. and then reaches remote monitoring's purpose. In this is novel, remote management personnel can conveniently pass through mobile phone control motor speed reduction equipment working method, and then can realize that 360 degrees constantly rotate, realize the purpose of no dead angle video monitoring to the surveillance area to when the scene has the stolen situation in the remote video monitoring, can be in corresponding fixed position through the cell-phone real time control camera and carry out video monitoring, reach good video monitoring effect. This neotype pyroelectric infrared detection module is when someone is close certain limit in the monitoring, can give distal end monitoring personnel suggestion through SMS module, in time looks over the monitor screen of PC (the main objective is that distal end monitoring personnel is not in PC antevalue punctuality, informs it to watch PC monitor screen as early as possible), obtains the on-the-spot condition of stealing as far as possible in real time. This novel protection that can play good effect to the coral reef. Based on the above, so this novel application prospect that has.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the rotating mechanism structure and a partial enlarged structure of the present invention;

fig. 3 is a circuit diagram of the present invention.

Detailed Description

As shown in fig. 1 and 2, a video monitoring device comprises a video monitoring device body with a night vision camera 1 and a GPRS module 2, a solar cell panel 3, a storage battery 4, a support column 5, a rectangular mounting shell 6, a pyroelectric infrared detection module 7, a mobile phone remote control module 8 and a short message module 9, wherein a video output end of the camera 1 is connected with a video input end of the GPRS module 2 through an RS485 data line, and the support column 5 is mounted on reefs near the coral reefs through a bottom plate 51 at the lower end thereof in a fixing manner such as a screw nut (the reefs pour concrete, the screw is located in the concrete); a rotating mechanism 10 is also provided; the rotating mechanism 10 comprises a motor speed reducing device 101 and two copper bearings 102, the lower end of the shell of the motor speed reducing device 101 is mounted on a support plate 52 at the upper end of a support column through a screw and a nut, the outer side of a power output shaft at the upper end of the motor speed reducing device 101 is sleeved with an insulating inner sleeve 103 from top to bottom, the insulating inner sleeve 103 at the upper end of the power output shaft is tightly sleeved in the inner rings of the two bearings 102, the two bearings 102 are positioned in the middle of the power output shaft, the upper end and the lower end of the power output shaft are separated by a certain distance, a guide groove 1031 is arranged between the middle part of the left outer side of the insulating inner sleeve 103 (made of plastic material) and the inner sides of the inner rings of the two bearings 102 from top to bottom, the inner sides of the inner rings of the two bearings 102 are respectively welded with an inner lead 1021, the two inner leads 1021 are positioned in the, a metal pipe 1023 is tightly sleeved outside the insulating outer sleeve, a flange plate at the lower end of the metal pipe 1023 is installed in the middle of the upper end of the shell of the motor speed reducing device 101 through a screw nut, and a power output shaft is positioned in the middle of the metal pipe 1023 and the inner part of the outer sleeve 1022; the middle of the outer side ends of the outer rings of the two bearings 102 is respectively welded with an outer lead 1024, the two outer leads 1024 are led out to the outer side of the metal tube 1023 through the outer sleeve 1022 and the openings at the left upper end and the middle part of the metal tube 1023, and the two outer leads 1024 are insulated from the metal tube 1023; the upper end of a power output shaft of the motor speed reduction device 101 is welded with a circular upper supporting plate 1011, the lower end of a mounting shell 6 is mounted at the upper end of the middle part of the upper supporting plate 1011 through a screw nut, a GPRS module 2 and a camera 1 are mounted in an element box A together, the element box A is mounted in the mounting shell 6, a lens (the front end of the lens inclines towards the ground by a certain angle to realize an effective video monitoring effect) of the camera 1 is positioned outside an opening at the middle part of the front ends of the element box and the mounting shell 6, an element box B11 is mounted on a supporting column at the lower front part of the supporting plate 52 through a screw nut, and a solar cell panel 3 is obliquely mounted at the; the storage battery 4, the mobile phone remote control module 8 and the short message module 9 are installed on a circuit board, the circuit board is installed in an element box B11, the number of the pyroelectric infrared detection modules 7 is three, the three pyroelectric infrared detection modules 7 are annularly distributed and installed around a support column 5 at the lower end of an element box B11 through screw nuts, and a detection head 71 of each pyroelectric infrared detection module is inclined towards the ground by a certain angle.

As shown in fig. 3, the camera a3 is a finished camera product with model number PTC01A-30, RS485 data output socket, and infrared night vision camera shooting function, and has working voltage dc 12V; the GPRS module A4 is ZLAN8100 in model, the working voltage of the GPRS module finished product is 12V direct current, and an RS485 data input port is arranged on the GPRS module finished product. The model of the solar cell panel G1 is 12V/5Ah, the model of the storage battery G2 is 12V/50Ah., the mobile phone remote control module A2 is a finished product of a mobile phone remote controller with working voltage of 12V and model of SM-DC, the mobile phone remote controller is provided with four terminals, two terminals are input power lines 1 and 2 pins, the other two are output power lines 3 and 4 pins, and through the existing mature mobile phone APP remote control technology, a user can control the power output end 3 and 4 pins of the mobile phone remote control module A2 to output or not output power at a remote end through mobile phone application, the mobile phone remote control module A2 is matched with a relay K2, the two pins 3 and 4 of the power output end of the mobile phone remote control module A2 are respectively connected with the positive and negative pole power input ends of the relay K2, and the pins 1 and 2 of the positive and negative pole power input ends of the mobile phone remote control module A2 are respectively connected with the two control contact ends of the relay K2. The pyroelectric infrared detection module A5N is a P-PR-02 model finished product of an outdoor remote waterproof human body infrared alarm induction switch, the working voltage is direct current 12V, the pyroelectric infrared detection module is provided with two power input ends 1 and 2 pins and a power output end 3 pin, the rear side end of a shell is arranged around a support column, when the pyroelectric infrared detection module A5N works, under the combined action of a Fresnel lens at the front end of a probe, when a movable human body enters the detection range of the probe, the power output end 3 pin can output a high-level power supply, the farthest detection distance can reach 15 meters, and the detection range formed by three pyroelectric infrared detection modules A5N reaches 360 degrees without dead angles; the pyroelectric infrared detection module A5N is matched with a resistor RN and an NPN triode QN, the resistor RN and the NPN triode QN are installed on a circuit board in the element box B, the positive and negative pole power input ends 1 and 2 of the three pyroelectric infrared detection modules A5N are respectively and electrically connected, the power output end 3 pin of the three pyroelectric infrared detection modules A5N is connected with one end of the resistor RN through a lead, the other end of the resistor RN is connected with the base electrode of the NPN triode QN through a lead, and the emitting electrode of the NPN triode QN is connected with the negative pole power input end 2 pin of the three pyroelectric infrared detection modules A5N through a lead. The short message module A6 is a finished product of a short message alarm module of brand Rongmai and model JC-820C, a mobile phone number card is arranged in the finished product of the short message alarm module, the short message module is provided with two power input ends 1 and 2 pins, eight signal input ends 3-10 pins, after each signal input end inputs a low level signal respectively, the short message module can respectively send a short message through a wireless mobile network, eight short messages with different contents can be stored in the short message module (technicians in the embodiment can edit the short messages in advance through the functions of the short message alarm module finished product, and the contents are such as 'stealing and mining coral reefs and the like'), after the pins 3-10 of the signal input port are respectively triggered by low levels, the short message module can send the short message with corresponding content to the mobile phone carried by the user through the self function (the phone number of the corresponding maintenance personnel needing to be notified is stored in the short message module in advance).

As shown in fig. 1, 2 and 3, the positive and negative poles of the solar cell panel G1 and the positive and negative poles of the storage battery G2 are connected with the positive and negative poles of the power input end of the mobile phone remote control module a2, the positive and negative poles of the power input end of the pyroelectric infrared detection module A5N, the positive and negative poles of the power input end of the short message module a6, and the positive and negative poles of the power input end of the short message module a 1 and 2, respectively, by wires; two normally open contact ends of two power output end relays K2 of the mobile phone remote control module and two power input ends of the motor speed reduction device M are respectively connected through leads; the signal output end NPN triode QN collecting electrode of the infrared detection module A5N is connected with the pin 3 of the signal input end of the short message module A6 through a lead; the positive and negative poles of the storage battery G2 are respectively connected with two outer leads W through leads, and the two inner leads N are respectively connected with the power input ends of the camera A3 and the GPRS module A4 through leads.

It is shown in fig. 1, 2, 3, the utility model discloses a video monitoring equipment body and current video monitoring equipment use principle and function are identical completely, and camera A3 shoots the live data, and GPRS module A4 transmits the live video data of shooting to the far-end user (or transmits the far-end through wired network) through wireless mode, and the far-end user receives live video data through PC etc. and then reaches remote monitoring's purpose. In this is novel, solar cell panel G1 produces the electric energy (no-load is higher than 12V, does benefit to battery G2 charging voltage required) for battery G2 charges under the illumination at ordinary times, when having guaranteed that electroless and overcast and rainy night, this novel ability is normally worked. In this novel, the power of battery G2 output gets into two outer wire W to two bearings 102 through copper material get into two interior wire N respectively, then the 12V power two poles of the earth of two interior wire outputs get into camera A3 and GPRS module A4's power input both ends, and then, camera A3 and GPRS module A4 all are in the operating condition that gets electricity. In this novel, when follow-up motor reduction gear M's pivot rotates, drive installation shell 6 and inside camera A3 and GPRS module A4 and do 360 degrees rotations, because outer wire W is located the bearing inner race and can not rotate, and interior wire N, the bearing inner race can rotate along with motor reduction gear M's power output shaft, be in the electrical property on-state between the bearing inner race and the outer race, consequently, the 12V power of battery G2 output can effectively get into camera A3 and GPRS module A4, guaranteed that camera A3 and GPRS module A4 are in the power consumption needs in the rotation.

As shown in fig. 1, 2, and 3, after the power output by the battery G enters the power input ends of the remote control module a2, the pyroelectric infrared detection module A5N, and the short message module a6, the remote control module a2, the pyroelectric infrared detection module A5N, and the short message module a6 are in an electric working state. In practical application, a remote monitoring person combines a PC screen to observe the field situation, the novel technology is based on the existing mature mobile phone application and the working mode of remote control electric equipment, when a camera A3 is required to monitor the field in a 360-degree continuous rotation mode, the application interface of the mobile phone operated by the monitoring person sends a wireless closing instruction, after the wireless closing instruction is received by a mobile phone remote control module A2, 3 and 4 pins of the mobile phone remote control module can output power to enter the positive and negative pole power input ends of a relay K2, and then the relay K2 is electrified to attract two control contact ends and two normally open contact ends of the relay K2 to be closed respectively; because two control contact ends of the relay K2 are respectively communicated with the positive pole and the negative pole of the storage battery, and two normally open contact ends of the relay K2 are respectively connected with the positive pole and the negative pole power input ends of the motor speed reducer M, the motor speed reducer M can be powered on to work at the moment, and the power output shaft of the motor speed reducer M can drive the installation shell 6, the camera A3 and the GPRS module A4 to continuously rotate, so that the purpose of carrying out video remote monitoring on the periphery of the coral reef within a range of 360 degrees is achieved. When monitoring personnel monitor that the video of the scene is stolen at a far end through a PC (or a follow-up mobile phone at the side receives a short message that the scene is stolen), the lens of the camera A3 is fixedly aligned to a stealing situation occurrence area as required, the application interface of the mobile phone operated by the monitoring personnel sends a wireless open circuit instruction, the remote control module A2 of the mobile phone stops outputting power to enter the positive and negative pole power input ends of the relay K2 after receiving the wireless open circuit instruction, so that the relay K2 is no longer attracted when losing power and two control contact ends and two normally open contact ends are respectively opened, further the motor speed reduction equipment M is not worked when losing power, a power output shaft of the motor speed reduction equipment M does not drive the installation shell 6, the camera A3 and the GPRS module A4 to rotate, the purpose of performing video remote monitoring around the coral reef in a fixed visual angle range is achieved, and a better video monitoring effect can be achieved (after the display screen displays that the camera is aligned to the stealing situation area, The motor reduction device M) is turned off.

As shown in fig. 1, 2, and 3, after the three pyroelectric infrared detection modules A5N are powered on, when no person steals the front end of the detection head of the three pyroelectric infrared detection modules A5N, no high level is output from the pins 3 of the three pyroelectric infrared detection modules A5N, and then the short message module a6 does not send a short message. When the stealing mining personnel enter the front 15 meters of the detection range of any set of pyroelectric infrared detection module A5N, 3 feet of one or more pyroelectric infrared detection modules A5N can output high level, the high level is subjected to voltage reduction and current limitation by a resistor RN and enters the base of an NPNM triode QN, the NPN triode QN is conducted with the collector thereof to output low level and enters the 3 feet of a short message module A6, thus, the short message module A6 can automatically send a short message for the mobile phone of the remote monitoring personnel under the internal action of the short message module A6, and the remote monitoring personnel can know the situation that the coral reef stealing mining happens on site in the first time after receiving the short message. The novel purpose of prompting the remote monitoring personnel through the short message module A6 is mainly that the remote monitoring personnel can be informed in real time to watch the monitoring screen as soon as possible when the remote monitoring personnel is not in the front of a PC. It should be noted that, the three pyroelectric infrared detection modules A5N of the present invention do not send short messages when the thief does not enter the range of the detection head, and the three pyroelectric infrared detection modules A5N are used as the functional supplement of the present invention, so as to ensure that the remote monitoring personnel can watch the monitor screen as soon as possible when they are not in the front of the PC. Relay K2 is a DC12V relay; the model of the NPN triode QN is 9013; the resistance value of the resistor RN is 10K; the motor reduction equipment M is a finished product of a motor gear reducer with the model number of 5IK15RGNC, the power of 15W and the working voltage of direct current of 12V, and the rotating speed of a power output shaft per minute is 15 revolutions.

Having shown and described the basic principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, the embodiments do not include only one independent technical solution, and such description is only for clarity, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A video monitoring device comprises a video monitoring device body, a solar cell panel, a storage battery, a support column, an installation shell, a pyroelectric infrared detection module, a mobile phone remote control module and a short message module, wherein the support column is installed in a monitoring area; it is characterized in that the device is also provided with a rotating mechanism; the rotating mechanism comprises a motor speed reducing device and a metal bearing, the motor speed reducing device is arranged at the upper end of the support column, an insulating inner sleeve is arranged on the outer side of a power output shaft of the motor speed reducing device, the insulating inner sleeve is tightly sleeved in an inner ring of the bearing, a guide groove is formed in the outer side of the insulating inner sleeve from top to bottom, an inner lead is arranged on the inner side of the inner ring of the bearing, the inner lead is positioned in the guide groove and led out from the upper end of the guide groove, an insulating outer sleeve is tightly sleeved on the outer side of an outer ring of the bearing, a metal pipe is tightly sleeved on the outer side of; an outer lead is arranged at the outer side end of the outer ring of the bearing; an upper supporting plate is arranged at the upper end of a power output shaft of the motor speed reduction equipment, a mounting shell is mounted at the upper end of the upper supporting plate, the GPRS module and the camera are mounted in the mounting shell together, an element box B is arranged at the lower part of the upper supporting plate, and a solar cell panel is mounted at the upper end of the element box B; the storage battery, the mobile phone remote control module and the short message module are arranged in the element box B, the number of the pyroelectric infrared detection modules is the same, and the pyroelectric infrared detection modules are annularly distributed and arranged around a support column positioned at the lower end of the element box B; the two power supply output ends of the mobile phone remote control module are respectively and electrically connected with the two power supply input ends of the motor speed reducing device; the signal output end of the infrared detection module is electrically connected with the signal input end of the short message module; the positive and negative poles of the storage battery are electrically connected with the two outer leads respectively, and the two inner leads are electrically connected with the camera and two ends of the power input of the GPRS module respectively.

2. A video monitoring apparatus according to claim 1, characterised in that the GPRS module model is ZLAN 8100.

3. The video monitoring device according to claim 1, wherein the remote control module of the mobile phone is a remote controller of the mobile phone, the remote control module of the mobile phone is provided with a relay, the relay is connected with the remote control module of the mobile phone through a circuit board, two pins 3 and 4 of the power output of the remote control module of the mobile phone are respectively connected with the positive and negative pole power input ends of the relay, and the pins 1 and 2 of the power input of the positive and negative poles of the remote control module of the mobile phone are respectively connected with the two control contact ends of the relay.

4. The video surveillance device of claim 1, wherein the pyroelectric infrared detection module is a human body infrared alarm inductive switch, the pyroelectric infrared detection module is configured with a resistor and an NPN transistor, the resistor and the NPN transistor are mounted on a circuit board in the component box B, positive and negative power input terminals of the plurality of pyroelectric infrared detection modules are electrically connected, respectively, a power output terminal of the plurality of pyroelectric infrared detection modules is electrically connected to one end of the resistor, the other end of the resistor is electrically connected to a base of the NPN transistor, and an emitter of the NPN transistor is electrically connected to a negative power input terminal of the plurality of pyroelectric infrared detection modules.

5. The video monitoring device of claim 1, wherein the short message module is a short message alarm module.