CN214544525U

CN214544525U - Building construction monitoring device based on BIM

Info

Publication number: CN214544525U
Application number: CN202121188331.4U
Authority: CN
Inventors: 阳勇波; 叶海金; 梁天成
Original assignee: Zhuhai Special Economic Zone Construction Supervision Co ltd
Current assignee: Zhuhai Special Economic Zone Construction Supervision Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-10-29
Anticipated expiration: 2031-05-28

Abstract

The utility model relates to a construction monitoring device based on BIM, including camera and light source, the light source is coupled with the illuminance detection circuitry who is used for controlling the light source bright and go out, illuminance detection circuitry includes illuminance detecting element, illuminance comparing element and on-off control unit, illuminance detecting element is used for detecting the illuminance of job site and sends out illuminance detected signal, illuminance comparing element is coupled in illuminance detecting element, on-off control unit is coupled in illuminance comparing element and connects in series in the power supply loop of light source, the light source is including being used for sending bright transmitting terminal, illuminance detecting element includes photo resistance RL, the transmitting terminal sets up to photo resistance RL dorsad. The camera is not easy to be in the effect of shooting in the dark environment.

Description

Building construction monitoring device based on BIM

Technical Field

The application relates to the technical field of BIM, in particular to a building construction monitoring device based on BIM.

Background

The core of BIM is that a complete building engineering information base consistent with the actual situation is provided for a virtual building engineering three-dimensional model by establishing the model and utilizing the digital technology; the information base not only contains geometrical information, professional attributes and state information describing building components, but also contains state information of non-component objects (such as space and motion behaviors).

The BIM technology is applied to the construction process of buildings, the engineering progress of each construction site can be monitored in real time, shot pictures are transmitted back to a background system of the BIM in real time through fixing cameras on different construction sites, and therefore workers can conveniently acquire video data to coordinate and process problems encountered in the construction process.

When light is darker, the picture quality of shooting by the camera is poorer, and after a light source needs to be opened by constructors, the camera can normally shoot.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: if the constructor does not turn on the light source in time, the effect of the obtained video data is poor, and further the application effect of the BIM technology is poor.

SUMMERY OF THE UTILITY MODEL

In order to make the camera be difficult for being in and shoot under the darker environment of light, and then automatic video data's the effect of acquireing is better, this application provides a building construction monitoring device based on BIM.

The application provides a building construction monitoring device based on BIM. The following technical scheme is adopted:

a BIM-based building construction monitoring device comprises a camera and a light source, wherein the camera and the light source are used for being fixed on a construction site, the light source is coupled with a illuminance detection circuit used for controlling the on and off of the light source, the illuminance detection circuit comprises an illuminance detection unit, an illuminance comparison unit and a switch control unit, the illuminance detection unit is used for detecting the illuminance of the construction site and sending out an illuminance detection signal, the illuminance comparison unit is coupled with the illuminance detection unit, the illuminance comparison unit is provided with an illuminance threshold value, the switch control unit is coupled with the illuminance comparison unit and connected in series in a power supply loop of the light source, the light source comprises an emitting end used for sending out light, the illuminance detection unit comprises a photoresistor RL, and the emitting end is arranged back to the photoresistor RL.

By adopting the technical scheme, the photoresistor RL detects the illuminance of a construction site in real time and sends out an illuminance detection signal, and the illuminance comparison unit compares the illuminance detection signal with an illuminance threshold value in real time and outputs an illuminance comparison signal when the illuminance detection signal is smaller than an off-lighting threshold value.

When the light of the construction site is dark, the illuminance comparison unit sends an illuminance comparison signal to the switch control unit, the switch control unit outputs a switch signal to control the light source to send light after receiving the illuminance comparison signal, the light source is arranged back to the photoresistor RL, namely the photoresistor RL is not easily irradiated when the light source is lightened, the photoresistor RL is not easily extinguished again because the illuminance detection signal is larger than the illuminance threshold value due to the fact that the photoresistor RL obtains the light of the light source, and the reliability of detecting the intensity of the light of the construction site by the photoresistor RL is high.

The automatic light-out of the light source is realized through the illuminance detection circuit, the operation is relatively automatic, the camera is not easy to shoot in a dark environment, and the automatic video data acquisition effect is good.

Optionally, the light source includes a spotlight, the spotlight is installed on one side of the camera along the shooting direction, one end of the spotlight emitting light is an emitting end, the emitting end and the shooting end of the camera face the same direction, and the photoresistor RL is fixed on the opposite end face of the shooting end of the camera.

By adopting the technical scheme, the photoresistor RL is fixed on the opposite end face of the shooting end of the camera, and the spotlight emits light in the direction back to the photoresistor RL, so that the light emitted by the emitting end is not easy to irradiate the photoresistor RL.

Optionally, one end of the photo resistor RL is coupled to a first resistor R1, one end of the photo resistor RL, which is away from the first resistor R1, is grounded, one end of the first resistor R1, which is away from the photo resistor RL, is coupled to the power supply voltage VCC, and a connection node between the first resistor R1 and the photo resistor RL is coupled to the illuminance comparison unit.

By adopting the above technical scheme, when the illuminance is reduced, the lower the resistance value of the photoresistor RL is, the lower the voltage divided at the two ends of the photoresistor RL is, the lower the voltage value output by the connection node of the first resistor R1 and the photoresistor RL is, namely, the lower the illuminance detection signal is, and when the illuminance is recovered, the voltage value output by the connection node of the first resistor R1 and the photoresistor RL is increased, namely, the illuminance detection signal is increased.

Optionally, the illuminance comparison unit includes a comparator N1, a first signal input terminal of the comparator N1 is coupled to a connection node between the first resistor R1 and the photo resistor RL, a second signal input terminal of the comparator N1 is connected to an illuminance threshold, and a signal output terminal of the comparator N1 is coupled to the switch control unit.

By adopting the technical scheme, the first signal input end and the second signal input end of the comparator N1 compare the illuminance detection signal with the illuminance threshold value in real time, when the illuminance detection signal is smaller than the illuminance threshold value, the signal output end of the comparator N1 outputs an illuminance comparison signal, and when the hang UN high illuminance detection signal is larger than the illuminance threshold value, the signal output end of the comparator N1 outputs a low level.

Optionally, the switch control unit includes a depletion-mode MOS transistor Q1, a gate of the MOS transistor Q1 is coupled to the signal output terminal of the comparator N1, a drain of the MOS transistor Q1 is coupled to the power voltage VCC, and a source of the MOS transistor Q1 is grounded.

By adopting the technical scheme, the MOS tube Q1 is conducted after receiving the illuminance comparison signal, and the MOS tube Q1 maintains a low level state after receiving the low level signal, so that the switching function of the switching control unit is realized.

Optionally, the switch control unit further includes a relay KM1, a coil of the relay KM1 is connected in series with a source of the MOS transistor Q1 and then grounded, the relay KM1 includes a normally open contact switch KM1-1, and the normally open contact switch KM1-1 is connected in series in a power supply loop of the spotlight.

By adopting the technical scheme, when the MOS transistor Q1 is switched on, the coil of the relay KM1 is electrified to close the normally open contact switch KM1-1, and when the MOS transistor Q1 is switched off, the coil of the relay KM1 is electrified to restore the normally open contact switch KM1-1 to a disconnected state, so that the function of controlling the power supply to be electrified is realized.

Optionally, the light source still includes battery and solar panel, the shot-light is coupled in the battery, solar panel is coupled in the battery.

Through adopting above-mentioned technical scheme, when light is better, utilize solar panel to charge for the battery for the use of shot-light is more energy-conserving.

Optionally, the battery can be dismantled with the shot-light and be connected, the camera is fixed with the base, the base is used for fixing at ceiling or wall, the base includes the loading board, solar panel and battery are all fixed in on the loading board.

Through adopting above-mentioned technical scheme, with battery, shot-light and solar panel integration on a base for monitoring devices's use is comparatively convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the automatic on-off of the light source is realized through the illuminance detection circuit, the operation is relatively automatic, the camera is not easy to shoot in a dark environment, and the automatic video data acquisition effect is relatively good;

2. the photoresistor RL is fixed on the opposite end face of the shooting end of the camera, and the light source emits light in the direction back to the photoresistor RL, so that the light emitted by the emitting end is not easy to irradiate the photoresistor RL;

and 3, the MOS tube Q1 is conducted after receiving the illuminance comparison signal, and the MOS tube Q1 maintains a low level state after receiving the low level signal, so that the switching function of the switching control unit is realized.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

fig. 2 is a circuit diagram of the illuminance detection circuit in the present embodiment.

Description of reference numerals: 1. a camera; 2. a base; 21. fixing the rod; 22. a carrier plate; 3. a light source; 31. sending light; 311. a transmitting end; 312. a clamping piece; 32. a storage battery; 33. a solar panel; 4. a illuminance detection unit; 5. a illuminance comparison unit; 6. and a switch control unit.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to fig. 1-2 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The embodiment of the application discloses building construction monitoring device based on BIM. Referring to fig. 1, the building construction monitoring apparatus based on BIM includes a camera 1 for fixing on a construction site and a light source 3, the camera 1 is fixed with a base 2, the base 2 is used for fixing on a wall or a ceiling, and the light source 3 is installed on the camera 1.

Light source 3 includes shot-light 31, battery 32 and solar panel 33, and shot-light 31 is coupled with battery 32, and solar panel 33 orientation can receive the direction setting of sunshine irradiation, carries out shot-light 31 through solar panel 33 and charges, has saved the use of power.

The base 2 comprises a fixing rod 21 and a bearing plate 22, the bearing plate 22 is horizontally arranged, the bearing plate 22 is fixedly connected with the fixing rod 21, one end of the fixing rod 21 is fixed with the ceiling, and one end, far away from the ceiling, of the fixing rod 21 is fixed with the camera 1; the spot light 31 is detachably connected with the fixed rod 21, and the spot light 31 is positioned on one side of the camera 1 along the shooting direction; the storage battery 32 and the solar panel 33 are both fixedly connected to the carrier plate 22.

The spot lamp 31 comprises an arc-shaped flexible clamping piece 312 and an emitting end 311, the clamping piece 312 is located at the end of the spot lamp 31 along the length direction, the emitting end 311 is located at the opposite end of the spot lamp 31 where the clamping piece 312 is arranged, the emitting end 311 is used for emitting light, the clamping piece 312 clamps the outer side wall of the fixing rod 21 along one side of the fixing rod 21, and clamping of the clamping piece 312 and the fixing rod 21 is achieved; the emitting end 311 is used for emitting light, and the orientation of the emitting end 311 is consistent with that of the camera 1.

Referring to fig. 2, a illuminance detection circuit for controlling on/off of the spot lamp 31 is coupled to the spot lamp 31, and the illuminance detection circuit includes an illuminance detection unit 4, an illuminance comparison unit 5, and a switch control unit 6.

Referring to fig. 1 and 2, the illuminance detection unit 4 is configured to detect illuminance at a construction site and to generate an illuminance detection signal; the illumination detection unit comprises a photoresistor RL, the photoresistor RL is fixed on the opposite end face of the shooting end of the camera 1, and therefore the photoresistor RL is not prone to being extinguished again due to the fact that the illumination detection signal is larger than the illumination threshold value because of obtaining illumination of the light source 3, and the photoresistor RL is strong in reliability of detecting the intensity of light on a construction site.

Referring to fig. 2, one end of the photo resistor RL is coupled to the first resistor R1, one end of the photo resistor RL away from the first resistor R1 is grounded, one end of the first resistor R1 away from the photo resistor RL is coupled to the power voltage VCC, and a connection node between the first resistor R1 and the photo resistor RL is coupled to the illuminance comparison unit 5.

The illuminance comparison unit 5 is coupled to the illuminance detection unit 4 and is provided with an illuminance threshold value so as to send out an illuminance comparison signal when the illuminance detection signal is smaller than the illuminance threshold value; the illuminance comparison unit 5 includes a comparator N1, a first signal input terminal of the comparator N1 is a positive input terminal coupled to a connection node between the first resistor R1 and the photo resistor RL, a second signal input terminal of the comparator N1 is an inverted input terminal connected to the illuminance threshold, and a signal output terminal of the comparator N1 is coupled to the switch control unit 6.

The switch control unit 6 is coupled to the illuminance comparison unit 5 and is connected in series in the power supply loop of the light source 3 to send out a switch control signal to control the spotlight 31 to send out light when receiving the illuminance comparison signal; the switch control unit 6 comprises a depletion type MOS tube Q1 and a relay KM1, wherein the grid electrode of the MOS tube Q1 is coupled to the signal output end of the comparator N1, the drain electrode of the MOS tube Q1 is coupled to a power supply voltage VCC, the source electrode of the MOS tube Q1 is grounded after being connected in series with the coil of the relay KM1, the relay KM1 comprises a normally open contact switch KM1-1, and the normally open contact switch KM1-1 is connected in series in a power supply loop of the spot lamp 31.

The implementation principle of the building construction monitoring device based on the BIM in the embodiment of the application is as follows: when the light of a construction site is darker, the light received by the photoresistor RL is weakened, the resistance value is increased, the voltage divided at the two ends of the photoresistor RL is increased, namely, the output illuminance detection signal is increased, when the illuminance comparison signal is greater than the light threshold value, the signal output end of the comparator N1 outputs the illuminance comparison signal to the grid of the MOS tube Q1, the MOS tube Q1 is conducted, so that the coil of the relay KM1 is electrified, the normally-open contact switch KM1-1 is closed, and the spotlight 31 emits light.

The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the application in any way, and any features disclosed in this specification (including the abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

Claims

1. The utility model provides a building construction monitoring device based on BIM which characterized in that: the illumination control system comprises a camera (1) and a light source (3) which are used for being fixed on a construction site, wherein the light source (3) is coupled with an illumination detection circuit used for controlling the light source (3) to be on or off, the illumination detection circuit comprises an illumination detection unit (4), an illumination comparison unit (5) and a switch control unit (6), the illumination detection unit (4) is used for detecting the illumination of the construction site and sending an illumination detection signal, the illumination comparison unit (5) is coupled with the illumination detection unit (4), the illumination comparison unit (5) is provided with an illumination threshold value, the switch control unit (6) is coupled with the illumination comparison unit (5) and is connected in series in a power supply loop of the light source (3), the light source (3) comprises an emitting end (311) used for emitting light, and the illumination detection unit comprises a photoresistor RL, the emission end (311) is arranged opposite to the photoresistor RL.

2. The BIM-based construction monitoring device of claim 1, wherein: the light source (3) comprises a spotlight (31), the spotlight (31) is installed on one side of the camera (1) along the shooting direction, one end of the spotlight (31) emitting light is an emitting end (311), the emitting end (311) faces the shooting end of the camera (1), and the photoresistor RL is fixed on the opposite end face of the shooting end of the camera (1).

3. The BIM-based construction monitoring device of claim 1, wherein: one end of the photosensitive resistor RL is coupled with a first resistor R1, one end of the photosensitive resistor RL far away from the first resistor R1 is grounded, one end of the first resistor R1 far away from the photosensitive resistor RL is coupled with a power supply voltage VCC, and a connection node of the first resistor R1 and the photosensitive resistor RL is coupled with a luminance comparison unit (5).

4. The BIM-based construction monitoring device of claim 3, wherein: the illuminance comparison unit (5) comprises a comparator N1, a first signal input end of the comparator N1 is coupled to a connection node of the first resistor R1 and the photoresistor RL, a second signal input end of the comparator N1 is connected to an illuminance threshold, and a signal output end of the comparator N1 is coupled to the switch control unit (6).

5. The BIM-based construction monitoring device of claim 4, wherein: the switch control unit (6) comprises a depletion type MOS transistor Q1, the grid electrode of the MOS transistor Q1 is coupled with the signal output end of the comparator N1, the drain electrode of the MOS transistor Q1 is coupled with a power supply voltage VCC, and the source electrode of the MOS transistor Q1 is grounded.

6. The BIM-based construction monitoring device of claim 5, wherein: the switch control unit (6) further comprises a relay KM1, a coil of the relay KM1 is connected with a source electrode of the MOS tube Q1 in series and then grounded, the relay KM1 comprises a normally open contact switch KM1-1, and the normally open contact switch KM1-1 is connected in series in a power supply loop of the spotlight (31).

7. The BIM-based construction monitoring device of claim 2, wherein: the light source (3) further comprises a storage battery (32) and a solar panel (33), the spotlight (31) is coupled to the storage battery (32), and the solar panel (33) is coupled to the storage battery (32).

8. The BIM-based construction monitoring device of claim 7, wherein: the storage battery (32) is detachably connected with the spotlight (31), the camera (1) is fixed with the base (2), the base (2) is used for being fixed on a ceiling or a wall, the base (2) comprises a bearing plate (22), and the solar panel (33) and the storage battery (32) are fixed on the bearing plate (22).