CN215642998U - Remote monitoring device for limited space operation - Google Patents
Remote monitoring device for limited space operation Download PDFInfo
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- CN215642998U CN215642998U CN202122166216.3U CN202122166216U CN215642998U CN 215642998 U CN215642998 U CN 215642998U CN 202122166216 U CN202122166216 U CN 202122166216U CN 215642998 U CN215642998 U CN 215642998U
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Abstract
The utility model provides a remote monitoring device for limited space operation, which comprises: the gas concentration detector, the instrument box, and the control circuit and the power circuit which are arranged in the instrument box; the surface of the box body of the instrument box is provided with a switch, a camera, a warning light, a loudspeaker and a filtering device; the gas concentration detector is arranged in the instrument box, and a suction device of the gas concentration detector is communicated with the filtering device; a gas detection cavity communicated with the suction device is arranged in the gas concentration detector, a gas concentration detection circuit is arranged in the gas detection cavity, the output end of the gas concentration detection circuit is electrically connected with the input end of the control circuit, and the output end of the control circuit is electrically connected with the warning lamp and the loudspeaker; the output end of the camera and the output end of the control circuit are electrically connected with an external platform through a gateway; the device has the beneficial effects of higher safety, capability of monitoring the content of harmful gas in the limited space in real time and early warning, and is suitable for the field of limited space operation.
Description
Technical Field
The utility model relates to the technical field of limited space operation, in particular to a remote monitoring device for limited space operation.
Background
The limited space is a space which is closed or partially closed, has blocked entrances and exits but can be accessed by personnel, is not designed as a fixed working place, has poor ventilation and is easy to cause accumulation of toxic and harmful, flammable and explosive substances or insufficient oxygen content.
In recent years, as enterprises do not carry out safety training on the limited space operation aspect on employees, the employees lack the safety consciousness of the limited space operation, and the employees blindly enter the limited space operation without taking any measures such as ventilation, detection, protection and the like, so that a plurality of toxic and dead accidents of the employees are caused.
Therefore, before entering the limited space operation, the field operation personnel must be equipped with necessary equipment such as gas detection, communication and the like to deal with the emergency situation of the limited space, and the existing limited space operation equipment mostly adopts wearable equipment, so that the safety use is realized, and meanwhile, the action of the personnel is limited.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the related technology, the technical problem to be solved by the utility model is as follows: the remote monitoring device for the limited space operation is high in safety and capable of monitoring the content of harmful gas in the limited space in real time and giving an early warning.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a remote monitoring device for limited space operations, comprising: the gas concentration detector, the instrument box, and the control circuit and the power circuit which are arranged in the instrument box;
the surface of the box body of the instrument box is provided with a switch, a camera, a warning lamp, a loudspeaker and a filtering device;
the gas concentration detector is arranged in the instrument box, and a suction device of the gas concentration detector is communicated with the filtering device;
a gas detection cavity communicated with the suction device is arranged in the gas concentration detector, a gas concentration detection circuit is arranged in the gas detection cavity, the output end of the gas concentration detection circuit is electrically connected with the input end of the control circuit, and the output end of the control circuit is electrically connected with the warning lamp and the loudspeaker;
the instrument box is also internally provided with a gateway, and the output end of the camera and the output end of the control circuit are electrically connected with an external platform through the gateway;
the switch is electrically connected with a power circuit, and the power circuit provides power supply for the whole device.
Preferably, the lower surface of the instrument box is provided with a threaded hole, and the instrument box is in threaded connection with a tripod through the threaded hole.
Preferably, one side of the instrument box is provided with a charging interface P1.
Preferably, the power supply circuit includes: a battery BAT, a charging circuit, a switching circuit, and a voltage conversion circuit;
the input end of the charging circuit is electrically connected with the charging interface P1, the output end of the charging circuit is connected with the battery BAT, the power supply end of the battery BAT is connected with the first input end of the switching circuit, the second input end of the switching circuit is electrically connected with the output end of the charging interface P1, and the output end of the switching circuit is connected with the output end of the power supply circuit through the voltage conversion circuit.
Preferably, the charging circuit includes: the power management chip U1, a pin VCC end of the power management chip U1 is connected in parallel with a pin CE of the power management chip U1 and then is connected with one end of a capacitor C1, one end of a capacitor C2, one end of a resistor R1, one end of a resistor R2 and one end of a resistor R3, the other end of the capacitor C1 is connected in parallel with the other end of a capacitor C2 and then is grounded, and the other end of the resistor R1 is connected with a pin VCC of a charging interface P1;
the other end of the resistor R2 is connected in series with a light emitting diode LED1 and then connected with a pin CHRG of a power management chip U1, and the other end of the resistor R3 is connected in series with a light emitting diode LED2 and then connected with a pin STDBY of a power management chip U1;
the power management chip U1 is characterized in that a pin BAT of the power management chip U1 is connected with one end of a capacitor C3 and one end of a capacitor C4 in parallel and then connected with a positive electrode of a battery BAT and an output end of a charging circuit, one end of the capacitor C3 is connected with one end of a capacitor C4, a negative electrode of the battery BAT and one end of a thermistor NTC in parallel and then connected with the ground, the other end of the thermistor NTC is connected with one end of a resistor R5 and a pin TEMP of the power management chip U1 in parallel, the other end of the resistor R5 is connected with one end of the resistor R4 and a pin GND of the power management chip U1 in parallel and then connected with the ground, and the other end of the resistor R4 is connected with a pin PROG of the power management chip U1.
Preferably, the switching circuit includes: a field effect transistor Q1, a triode Q2 and a triode Q3;
the D pole of the field effect transistor Q1 is connected with the first input end of the switching circuit, the S pole of the field effect transistor Q1 is connected with one end of a resistor R9 after being connected with one end of a resistor R8 in parallel, the other end of the resistor R8 is connected with the base electrode of a triode Q2 and the collector electrode of a triode Q3 respectively, the collector electrode of the triode Q2 is connected with a resistor R7 in series and then is connected with the G pole of a field effect transistor Q1, and the emitter electrode of the triode Q2 is connected with the emitter electrode of a triode Q3 in parallel and then is connected with the negative end of the power supply of the battery BAT;
the base electrode of the triode Q3 is connected with the second input end of the switching circuit after being connected with the resistor R10 in series;
the switch button S1 is connected in series between the positive power supply terminal of the battery BAT and the first input terminal of the switching circuit.
Preferably, the charging interface P1 is connected in series with a charging circuit diode D1.
Preferably, the camera is a night vision miniature camera.
The utility model has the beneficial technical effects that:
when the remote monitoring device for the limited space operation is used, the device can be placed at a proper position in a limited space, namely, the gas content in the limited space can be monitored through the gas concentration detector, and early warning can be performed through the warning lamp and the loudspeaker when the gas content exceeds the standard; meanwhile, in the utility model, the operation environment can be collected through the camera, the camera is connected with the gateway, the control circuit is connected with the gateway, the operation environment information and the gas content information are sent to an external platform, the outward transmission of the information in the limited operation space is ensured, the safety state of the operation personnel is monitored in time, and the practicability is high.
Drawings
FIG. 1 is a schematic diagram of a remote monitoring device for limited space operations according to the present invention;
FIG. 2 is a schematic circuit diagram of a remote monitoring device for limited space operation according to the present invention;
FIG. 3 is a schematic view of the structure of the gas concentration detector according to the present invention;
FIG. 4 is a schematic circuit diagram of a battery BAT, a charging circuit and a switching circuit according to the present invention
In the figure: 1 is a gas concentration detector, 2 is an instrument box, 3 is a control circuit, 4 is a power circuit, 5 is a switch, 6 is a camera, 7 is a warning light, 8 is a loudspeaker, 9 is a filtering device and 10 is a gateway;
11 is a suction device, 12 is a gas detection cavity, and 13 is a gas concentration detection circuit;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Next, the present invention will be described in detail with reference to the drawings, wherein the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration when describing the embodiments of the present invention, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
An embodiment of the present invention is described in detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1 to 3, a remote monitoring apparatus for limited space work, includes: a gas concentration detector 1, an instrument case 2, and a control circuit 3 and a power supply circuit 4 provided inside the instrument case 2;
the surface of the box body of the instrument box 2 is provided with a switch 5, a camera 6, a warning light 7, a loudspeaker 8 and a filtering device 9;
the gas concentration detector 1 is arranged inside the instrument box 2, and the suction device 11 of the gas concentration detector 1 is communicated with the filtering device 9;
a gas detection cavity 12 communicated with a suction device 11 is arranged in the gas concentration detector 1, a gas concentration detection circuit 13 is arranged in the gas detection cavity 12, the output end of the gas concentration detection circuit 13 is electrically connected with the input end of the control circuit 3, and the output end of the control circuit 3 is electrically connected with the warning lamp 7 and the loudspeaker 8;
a gateway 10 is further arranged in the instrument box 2, and the output end of the camera 6 and the output end of the control circuit 3 are electrically connected with an external platform through the gateway 10;
the switch 5 is electrically connected with a power circuit 4, and the power circuit 4 provides power supply for the whole device.
When the remote monitoring device for the limited space operation is used, the device can be placed at a proper position in a limited space, namely, the gas content in the limited space can be monitored through the gas concentration detector 1, and early warning can be performed through the warning lamp and the loudspeaker when the gas content exceeds the standard; meanwhile, in the utility model, the operation environment can be collected through the camera 6, the operation environment information and the gas content information are sent to an external platform through the connection between the camera 6 and the gateway 10 and the connection between the control circuit 3 and the gateway 10, so that the outward transmission of the information in the limited operation space is ensured, the safety state of the operator is monitored in time, and the practicability is strong.
Specifically, in this embodiment, a charging interface P1 is provided on one side of the instrument box 2.
As shown in fig. 4, the power supply circuit 4 includes: a battery BAT, a charging circuit 41, a switching circuit 42, and a voltage conversion circuit 43;
the input end of the charging circuit 41 is electrically connected with the charging interface P1, the output end of the charging circuit 41 is connected with the battery BAT, the power supply end of the battery BAT is connected with the first input end of the switching circuit 42, the second input end of the switching circuit 42 is electrically connected with the output end of the charging interface P1, and the output end of the switching circuit 42 is connected with the output end of the power supply circuit 4 through the voltage conversion circuit 43.
Further, the charging circuit 41 includes: the power management chip U1, a pin VCC end of the power management chip U1 is connected in parallel with a pin CE of the power management chip U1 and then is connected with one end of a capacitor C1, one end of a capacitor C2, one end of a resistor R1, one end of a resistor R2 and one end of a resistor R3, the other end of the capacitor C1 is connected in parallel with the other end of a capacitor C2 and then is grounded, and the other end of the resistor R1 is connected with a pin VCC of a charging interface P1;
the other end of the resistor R2 is connected in series with a light emitting diode LED1 and then connected with a pin CHRG of a power management chip U1, and the other end of the resistor R3 is connected in series with a light emitting diode LED2 and then connected with a pin STDBY of a power management chip U1;
the power management chip U1 is characterized in that a pin BAT of the power management chip U1 is connected with one end of a capacitor C3 and one end of a capacitor C4 in parallel and then connected with a positive electrode of a battery BAT and an output end of the charging circuit 41, one end of the capacitor C3 is connected with one end of a capacitor C4, a negative electrode of the battery BAT and one end of a thermistor NTC in parallel and then connected with the ground, the other end of the thermistor NTC is connected with one end of a resistor R5 and a pin TEMP of the power management chip U1 in parallel, the other end of the resistor R5 is connected with one end of the resistor R4 and a pin GND of the power management chip U1 in parallel and then connected with the ground, and the other end of the resistor R4 is connected with a pin PROG of the power management chip U1.
Further, the switching circuit 42 includes: a field effect transistor Q1, a triode Q2 and a triode Q3;
a D electrode of the field effect transistor Q1 is connected with a first input end of the switching circuit 42, an S electrode of the field effect transistor Q1 is connected with one end of the resistor R8 in parallel and then connected with one end of the resistor R9, the other end of the resistor R8 is connected with a base electrode of the triode Q2 and a collector electrode of the triode Q3 respectively, a collector electrode of the triode Q2 is connected with a G electrode of the field effect transistor Q1 in series after being connected with the resistor R7 in series, and an emitter electrode of the triode Q2 is connected with an emitter electrode of the triode Q3 in parallel and then connected with a negative power supply terminal of the battery BAT;
the base electrode of the triode Q3 is connected with the second input end of the switching circuit 42 after being connected with the resistor R10 in series;
the button S1 of the switch 5 is connected in series between the positive power supply terminal of the battery BAT and the first input terminal of the switching circuit 42.
In this embodiment, when there is no external power supply, field effect transistor Q1, triode Q2 switch on, and the battery BAT supplies power outwards, and when external power supply, be in charged state, triode Q3 switches on, and field effect transistor Q1 and triode Q2 cut off, and the battery BAT stops the power supply outwards, and in this embodiment, through the switching circuit 42 who sets up, can effectively avoid the use under the charged state, improve the life of battery.
Furthermore, the charging interface P1 is connected in series with the charging circuit 41 through a diode D1; in this embodiment, by providing the diode D1, circuit damage caused by reverse connection of the external power supply can be effectively prevented, specifically, when the power supply circuit 4 inputs a positive voltage, the diode D1 charges the battery BAT through the charging circuit 41, and when the power supply circuit 4 inputs a negative voltage, the diode D1 is turned off.
In this embodiment, the camera 6 is a night vision micro camera.
In this embodiment, the control circuit 3 may be composed of a single chip microcomputer U2 of model STC15W4K60S4_ PDIP40 and peripheral circuits thereof; the pin P0.0 and the pin P0.1 of the single chip microcomputer U2 are respectively connected with a communication interface of the control circuit 3, the control circuit 3 is connected with the gateway 10 through the communication interface, the pin P1.7 of the single chip microcomputer U2 is connected with the output end of the gas concentration detection circuit 13 so as to receive a gas concentration signal uploaded by the gas concentration detection circuit, and the pin P4.5 and the pin P0.5 of the single chip microcomputer U2 can be respectively connected with the input end of the loudspeaker 8 and the input end of the warning lamp 7 correspondingly.
In this embodiment, the gas concentration detection circuit may adopt a gas concentration sensor in the prior art, and specifically may include: at least one of a hydrogen sulfide gas sensor, a carbon monoxide gas sensor, a combustible gas sensor and the like.
Example two
On the basis of the first embodiment, the lower surface of the instrument box 2 is provided with a threaded hole, and the instrument box 2 is in threaded connection with a tripod through the threaded hole.
In this embodiment, through being connected of screw hole and tripod, can be convenient place this device in suitable position, avoided the limited problem of the camera visual range that causes because of the space is limited, the practicality is strong.
The utility model provides a remote monitoring device for limited space operation, which can comprise a plurality of using modes:
1) can be applied to a limited operation space which is closed for a long time:
the device can be placed in an operation space before operation, and operators enter the device after a certain time without alarm, so that the body damage caused by overhigh content is avoided;
2) can be used in the operation process:
in a semi-closed limited operation space, because of a certain ventilation space, the content of harmful gas in the space is not too high generally, and the space can be placed at a proper position in the space during operation and monitored while working;
the gas concentration can be continuously monitored in real time through the gas detector and the camera, the gas can be alarmed in real time and the gas data can be reported when the set alarm value is reached, and the camera can transmit a field real-time video picture so as to take corresponding remedial measures when special conditions occur; the safety is higher, and the practicality is strong.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A remote monitoring device for limited space operations, comprising: gas concentration detector (1), characterized by: further comprising: the instrument comprises an instrument box (2), and a control circuit (3) and a power circuit (4) which are arranged in the instrument box (2);
a switch (5), a camera (6), a warning lamp (7), a loudspeaker (8) and a filtering device (9) are arranged on the surface of the box body of the instrument box (2);
the gas concentration detector (1) is arranged inside the instrument box (2), and a suction device (11) of the gas concentration detector (1) is communicated with the filtering device (9);
a gas detection cavity (12) communicated with the suction device (11) is arranged in the gas concentration detector (1), a gas concentration detection circuit (13) is arranged in the gas detection cavity (12), the output end of the gas concentration detection circuit (13) is electrically connected with the input end of the control circuit (3), and the output end of the control circuit (3) is electrically connected with the warning lamp (7) and the loudspeaker (8);
a gateway (10) is further arranged in the instrument box (2), and the output end of the camera (6) and the output end of the control circuit (3) are electrically connected with an external platform through the gateway (10);
the switch (5) is electrically connected with the power circuit (4), and the power circuit (4) supplies power to the whole device.
2. A remote monitoring device for limited space operations according to claim 1, wherein: the lower surface of instrument case (2) is provided with the screw hole, instrument case (2) pass through screw hole and tripod threaded connection.
3. A remote monitoring device for limited space operations according to claim 1, wherein: one side of instrument case (2) is provided with the interface P1 that charges.
4. A remote monitoring device for limited space operations according to claim 3, wherein: the power supply circuit (4) includes: a battery BAT, a charging circuit (41), a switching circuit (42), and a voltage conversion circuit (43);
the input end of the charging circuit (41) is electrically connected with the charging interface P1, the output end of the charging circuit (41) is connected with the battery BAT, the power supply end of the battery BAT is connected with the first input end of the switching circuit (42), the second input end of the switching circuit (42) is electrically connected with the output end of the charging interface P1, and the output end of the switching circuit (42) is connected with the output end of the power supply circuit (4) through the voltage conversion circuit (43).
5. A remote monitoring device for limited space operations according to claim 4, wherein: the charging circuit (41) includes: the power management chip U1, a pin VCC end of the power management chip U1 is connected in parallel with a pin CE of the power management chip U1 and then is connected with one end of a capacitor C1, one end of a capacitor C2, one end of a resistor R1, one end of a resistor R2 and one end of a resistor R3, the other end of the capacitor C1 is connected in parallel with the other end of a capacitor C2 and then is grounded, and the other end of the resistor R1 is connected with a pin VCC of a charging interface P1;
the other end of the resistor R2 is connected in series with a light emitting diode LED1 and then connected with a pin CHRG of a power management chip U1, and the other end of the resistor R3 is connected in series with a light emitting diode LED2 and then connected with a pin STDBY of a power management chip U1;
the power management chip U1 is characterized in that a pin BAT of the power management chip U1 is connected with one end of a capacitor C3 and one end of a capacitor C4 in parallel and then connected with a positive electrode of a battery BAT and an output end of a charging circuit (41), one end of the capacitor C3 is connected with one end of a capacitor C4, a negative electrode of the battery BAT and one end of a thermistor NTC in parallel and then connected with the ground, the other end of the thermistor NTC is connected with one end of a resistor R5 and a pin TEMP of the power management chip U1 in parallel, the other end of the resistor R5 is connected with one end of the resistor R4 and a pin GND of the power management chip U1 in parallel and then connected with the ground, and the other end of the resistor R4 is connected with a pin PROG of the power management chip U1.
6. A remote monitoring device for limited space operations according to claim 4, wherein: the switching circuit (42) includes: a field effect transistor Q1, a triode Q2 and a triode Q3;
the D pole of the field effect transistor Q1 is connected with the first input end of the switching circuit (42), the S pole of the field effect transistor Q1 is connected with one end of a resistor R8 in parallel and then is connected with one end of a resistor R9, the other end of the resistor R8 is connected with the base electrode of a triode Q2 and the collector electrode of a triode Q3 respectively, the collector electrode of the triode Q2 is connected with the G pole of the field effect transistor Q1 in series and then is connected with the resistor R7, and the emitter electrode of the triode Q2 is connected with the emitter electrode of a triode Q3 in parallel and then is connected with the negative end of the power supply of the battery BAT;
the base electrode of the triode Q3 is connected with the second input end of the switching circuit (42) after being connected with the resistor R10 in series;
the button S1 of the switch (5) is connected in series between the positive power supply terminal of the battery BAT and the first input terminal of the switching circuit (42).
7. A remote monitoring device for limited space operations according to claim 4, wherein: the charging interface P1 is connected with a charging circuit (41) in series with a diode D1.
8. A remote monitoring device for limited space operations according to claim 4, wherein: the camera (6) is a night vision miniature camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122166216.3U CN215642998U (en) | 2021-09-08 | 2021-09-08 | Remote monitoring device for limited space operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122166216.3U CN215642998U (en) | 2021-09-08 | 2021-09-08 | Remote monitoring device for limited space operation |
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| Publication Number | Publication Date |
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| CN215642998U true CN215642998U (en) | 2022-01-25 |
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| CN202122166216.3U Active CN215642998U (en) | 2021-09-08 | 2021-09-08 | Remote monitoring device for limited space operation |
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