CN211577378U - Electric leakage detection alarm system - Google Patents
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- CN211577378U CN211577378U CN201921643149.6U CN201921643149U CN211577378U CN 211577378 U CN211577378 U CN 211577378U CN 201921643149 U CN201921643149 U CN 201921643149U CN 211577378 U CN211577378 U CN 211577378U
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Abstract
The utility model discloses an electric leakage detection alarm system, include: a control module; the leakage detection module is used for detecting leakage information, generating a leakage detection signal and sending the leakage detection signal to the control module; the human body detection module is provided with one or more than one human body detection modules and is used for detecting the human body existence state of the detection area of the human body detection module, generating a human body detection signal and sending the human body detection signal to the control module; and one or more alarm modules which are arranged adjacent to the human body detection modules in a one-to-one correspondence manner, wherein the alarm modules are connected with the control module. The utility model discloses an electric leakage detection alarm system, through setting up human detection module and with the adjacent alarm module of human detection module, when electric leakage detection module detected the electric leakage, control module was according to the human existence condition that human detection module detected, and control and the adjacent alarm module of human body report to the police and indicate, ensure that the user in time learns alarm signal to in time handle, avoid causing bigger injury.
Description
Technical Field
The utility model belongs to the technical field of the electric leakage detection, specifically speaking relates to an electric leakage detection alarm system.
Background
Electrical equipment is in the use, because electric leakage phenomenon probably appears in reasons such as circuit ageing, trouble, some electrical equipment are from taking the electric leakage detection function, when detecting the electric leakage, all report to the police, carry out action such as power-off protection in detection equipment's local, can't avoid this electrical equipment because mounted position is comparatively hidden, lead to in time being known alarm information by the user, lead to delaying processing time, increase the risk of electrocution.
In addition, when leakage occurs, typically the hot line is connected to the ground, causing the ground to become charged. If the ground is good, the electricity generated will be conducted to the ground without danger. If the ground wire is not well connected to the ground, because the household electrical appliances share the ground wire, when the ground wire is electrified, electric leakage can be conducted to all the electrical appliances through the ground wire, and not all the electrical appliances have the electric leakage detection function, so that the electric shock risk is further increased.
Disclosure of Invention
The utility model discloses only individual electrical equipment has the electric leakage detection function among the prior art, exists because this electrical equipment mounted position hides the problem that the user can't in time be informed alarm information to the user and lead to delaying processing time, has provided an electric leakage detection alarm system, can solve above-mentioned problem.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:
an electrical leakage detection alarm system comprising:
a control module;
the leakage detection module is used for detecting leakage information, generating a leakage detection signal and sending the leakage detection signal to the control module;
the human body detection module is provided with one or more than one human body detection modules and is used for detecting human bodies in the detection area of the human body detection module, generating a human body detection signal and sending the human body detection signal to the control module;
and the alarm module is provided with one or more alarm modules, the alarm module is connected with the control module, and when the control module receives the electric leakage detection signal, the control module controls the alarm module which is closest to the human body detection module for detecting the human body to alarm.
Furthermore, the control module has one or more, when a plurality of the control modules are provided, the control modules are in communication connection, the human body detection module is respectively connected with one control module, and the human body detection module and the adjacent alarm module are connected with the same control module.
Furthermore, a plurality of the control modules are respectively control modules of a plurality of intelligent devices, and the human body detection module and the alarm module are respectively arranged on the corresponding intelligent devices.
Furthermore, the leakage detection module has one or more than one, at least part of the intelligent equipment is respectively provided with a leakage detection module, and the leakage detection module is connected with the control module of the intelligent equipment where the leakage detection module is located.
Further, the human body detection module is an ultrasonic detection module or an infrared human body detection module.
Further, the leakage detecting module includes:
an inductive element;
the input end of the amplifying circuit is connected with the sensing element, and the output end of the amplifying circuit is connected with the alarm module or the control module;
the power supply module is used for supplying power to the amplifying circuit;
and the induction element and the detected object are wholly or partially enclosed in the shielding case, and the shielding case is used for shielding an electric field outside the shielding case.
Furthermore, the amplifying circuit comprises a first switch circuit and a voltage dividing circuit, one end of the voltage dividing circuit is connected with the power module, the other end of the voltage dividing circuit is connected with the ground through the first switch circuit, and the sensing signal generated by the sensing element is used for controlling the conduction state of the first switch circuit.
Furthermore, the amplifying circuit further comprises a second switch circuit, one end of the second switch circuit is connected with the power module, the other end of the second switch circuit is connected with the control end of the first switch circuit, and the control end of the second switch circuit is connected with the sensing element.
Furthermore, a filter capacitor is connected in parallel to two ends of the first switch circuit.
Further, the first switching circuit is a first NPN triode, the second switching circuit is a second NPN triode, a collector of the first NPN triode is connected to the voltage dividing circuit, an emitter of the first NPN triode is connected to ground, a base of the second NPN triode is connected to the sensing element, a collector of the second NPN triode is connected to the power supply, and an emitter of the second NPN triode is connected to the base of the first NPN triode.
Compared with the prior art, the utility model discloses an advantage is with positive effect: the utility model discloses an electric leakage detection alarm system, through setting up human detection module and with the adjacent alarm module of human detection module, when electric leakage detection module detected the electric leakage, control module was according to the human existence condition that human detection module detected, and control and the adjacent alarm module of human body report to the police and indicate, ensure that the user in time learns alarm signal to in time handle, avoid causing bigger injury.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic block diagram of an embodiment of an electrical leakage detection alarm system provided by the present invention;
fig. 2 is a system layout diagram of an embodiment of the leakage detection alarm system provided by the present invention;
fig. 3 is a schematic structural diagram of an embodiment of an electric leakage detection device in the electric leakage detection alarm system provided by the present invention;
FIG. 4 is a schematic block diagram of one embodiment of the leakage detection device of FIG. 3;
fig. 5 is a schematic circuit diagram of an embodiment of the leakage detecting device in fig. 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
It should be noted that, in the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In a first embodiment, the present embodiment provides an electrical leakage detection alarm system, as shown in fig. 1, which includes a control module, an electrical leakage detection module, a human body detection module, and an alarm module, where the electrical leakage detection module is configured to detect electrical leakage information, generate an electrical leakage detection signal, and send the electrical leakage detection signal to the control module; the human body detection module is provided with one or more human body detection signals for detecting the human body existence state of the detection area and sending the human body detection signals to the control module; and the alarm module is provided with one or more alarm modules, the alarm module is connected with the control module, and when the control module receives the electric leakage detection signal, the control module controls the alarm module closest to the human body detection module for detecting the human body to alarm. The principle of the electric leakage detection alarm system is as follows: the electric leakage detection module is used for detecting the electric leakage condition of electrical equipment or a household power grid, and generates an electric leakage detection signal to be sent to the control module, through setting up the human body detection module and the alarm module, when the electric leakage detection module detects the electric leakage, the control module detects the human body existing state according to the human body detection module, if the human body detection module can detect the human body existing, it is closer to the human body to explain that the human body is close to the human body, alarm module with the nearest alarm module of this human body detection module distance is reported to the police through control, therefore this alarm module is also close to the human body, ensure that the user in time learns the alarm signal, so as to in time handle. Specifically, if the control module receives a leakage detection signal indicating leakage from the leakage detection module or another control module and receives a human body detection signal indicating the presence of a human body, the control module controls the alarm module connected thereto to alarm. The arrangement distance between the human body detection module and the alarm module is determined in advance, and the control module can determine the alarm module closest to each human body detection module by adopting a conventional comparison method.
In order to facilitate the control module to determine the alarm module closest to the human body detection module, the alarm module can be arranged adjacent to the human body detection module in a one-to-one correspondence manner, when the control module receives the leakage detection signal, the alarm module corresponding to the human body detection module can be rapidly determined to alarm according to the human body detection module detecting the human body, and it can be understood that the alarm module is closest to the human body detection module, so that a user can be ensured to know the alarm signal in time.
The control module can be one, when the control module is provided, the electric leakage detection module, all the human body detection modules and the alarm module are respectively connected with the control module, and the control module controls the alarm module adjacent to the human body detection module capable of detecting the human body to give an alarm prompt according to the condition of the received electric leakage detection signal and the human body detection signal.
The control module can also be provided with a plurality of control modules, when the control module is provided with a plurality of control modules, the control modules are in communication connection, the human body detection modules are respectively connected with one control module, namely, the number of the control modules is not less than that of the human body detection modules, and the human body detection modules and the alarm modules adjacent to the human body detection modules are connected with the same control module. The control modules are connected through wired or wireless communication, the electric leakage detection module can be independently connected with one control module, when electric leakage is detected, the control module sends electric leakage signals to all the control modules, and each control module determines whether to send alarm control signals to the alarm module connected with the control module according to the human body detection signals detected by the human body detection module connected with the control module. This ensures that the alarm module which is close to the user issues an alarm (at least the user is located in the detection area to which it corresponds). The possibility that a user is detected by a plurality of human body detection modules at the same time is that a plurality of corresponding alarm modules send out alarm prompts, the reliability is higher, and the alarm missing is prevented.
If only need set up a plurality of control module respectively for electric leakage warning suggestion, cause the wasting of resources, in order to practice thrift the cost, it is the control module of a plurality of smart machines respectively to prefer this a plurality of control module, and human detection module and alarm module set up respectively on corresponding smart machine. The intelligent equipment can be intelligent household electrical equipment in a family, and also can be intelligent mechanical equipment in industry, and no matter what equipment, the alarm system makes full use of a control module equipped by the intelligent equipment, so that the cost is saved. The human body passes through the intelligent equipment when patrolling or walking, and can be detected by the human body detection module arranged on the intelligent equipment. As shown in fig. 2, smart device 1 and smart device 2 … … are smart device n, respectively.
The leakage detection module is provided with one or more than one, at least one part of intelligent equipment is respectively provided with a leakage detection module, and the leakage detection module is connected with a control module of the intelligent equipment where the leakage detection module is located. The leakage detection module sends a leakage detection signal to the control module connected with the leakage detection module, and the leakage detection signal is sent to all other connected control modules by the control module to perform corresponding alarm control, and the communication modes among the control modules can be carrier communication, Bluetooth communication, radio frequency communication, local area network communication and the like.
The human body detection module can be an ultrasonic detection module or an infrared human body detection module, is certainly not limited to the detection module, and all modules with human body detection functions are applied to the scheme and all belong to the protection range of the scheme.
As a preferred embodiment, as shown in fig. 3, the leakage detecting module includes:
an inductive element 11, an amplifying circuit 12, a power supply module 13 and a shielding case 14; the induction element 11 can sense the surrounding alternating current electric field and generate an induction signal, the induction signal of the induction element 11 is weak under general conditions and needs to be sent to the amplifying circuit 12 for amplification, the input end of the amplifying circuit 12 is connected with the induction element 11, the output end of the amplifying circuit 12 is connected with the alarm module or the control module, the amplifying circuit 12 amplifies and outputs the induction signal, the value alarm module can be directly output for alarm prompt, the value control module can also be output, and the control module takes protection control measures and the like; the power module 13 is used for providing power for the amplifying circuit 12, and may be implemented by directly using a battery capable of outputting direct current, or may be a power conversion module, which inputs alternating current to convert the alternating current into direct current to supply power to the amplifying circuit 12; because the electric equipment needs to supply alternating current when working normally, in order to prevent the power line which supplies power normally from interfering the induction type electric leakage detection device and generating misjudgment, the scheme is that the shielding case 14 is arranged, at least the induction element 11 and the detected body 10 are sealed in the shielding case 14, for shielding the external electric field, from entering the shielding enclosure 14, interfering with the inductive element 11, which can sense only the ac electric field of the detected object 10, which is also located inside the shielding case 14, the shielding case 14 can be implemented by a good metal conductor with an internal hollow shell, the shielding case 14 needs to be connected to the ground by a separate wire, by grounding the shielding case 14, the same amount of positive charges induced on the surface of the shielding case 14 by the external ac electric field are discharged along the grounding wire to the ground plane, so that the power line generated by the external ac electric field source can be shielded outside the shielding case.
The alarm module and the control module can be selected from one or both of them.
It should be noted that the detected object 10 should be a conductor, the detected object 10 should be at 0 potential under normal conditions, that is, no electric field is radiated to the space, when an alternating voltage is applied to the detected object 10 during leakage, there is a risk of electric shock occurring when a person directly touches the detected object 10 or touches another conductor electrically connected to the detected object 10, and the detected object 10 may be a part of an electrical apparatus or a ground wire in a power line.
The inductive element 11 can be realized by adopting a metal pickup piece, the detected body can be wholly or partially sealed in the shielding case 14, the inductive element 11 and the detected body are arranged in a non-contact way, when the detected body has electric leakage, an electric field radiated to a space can be detected by the inductive element 11, meanwhile, the detected body can be prevented from directly contacting the inductive element 11, the high-voltage alternating current is damaged to the inductive electric leakage detection device, in addition, the detected body with the electric leakage can be prevented from continuously transmitting the electric to the electric leakage detection device, an electric leakage point is increased, and further, the electric shock risk is increased.
The amplifying circuit 12 is configured to amplify a small signal sensed by the sensing element 11 to a state that can be identified by the control module or can control the alarm module to generate an alarm, preferably, in this embodiment, as shown in fig. 4, the amplifying circuit 12 includes a first switch circuit and a voltage dividing circuit, one end of the voltage dividing circuit is connected to the power module, the other end of the voltage dividing circuit is connected to ground through the first switch circuit, the dc power supply is configured to provide a dc operating voltage VCC for the voltage dividing circuit, a signal output terminal LDJC of the amplifying circuit 12 is disposed between the voltage dividing circuit and the first switch circuit, a sensing signal generated by the sensing element 11 is configured to control a conducting state of the first switch circuit, when no electric leakage occurs, the sensing element 11 does not sense a signal, and therefore, the first switch circuit is not conducting, a conducting loop is not formed between the corresponding dc operating voltage VCC and ground, and a signal state output by the signal output terminal, when the leakage occurs, the sensing element 11 generates a sensing signal, when the voltage of the sensing signal is enough to turn on the first switch circuit, the first switch circuit is turned on, a conduction loop is formed between the corresponding direct current working voltage VCC and the ground, the signal output end LDJC has signal output, and the state of the signal output by the signal output end LDJC changes, which indicates the leakage. The signal can be directly used for controlling the alarm module to give an alarm, and can also be sent to the control module, and the control module takes further protective measures, such as cutting off a power supply and the like.
In order to improve the stability and the driving capability of the amplifying circuit 12, the amplifying circuit 12 further includes a second switch circuit, one end of the second switch circuit is connected to the power module, the other end of the second switch circuit is connected to the control end of the first switch circuit, and the control end of the second switch circuit is connected to the sensing element. The sensing element 11 generates a sensing signal for controlling the on-state of the first switch circuit, when the sensing signal generated by the leakage drives the first switch circuit to be on, the dc working voltage VCC output by the power module can be directly loaded on the first switch circuit through the second switch circuit, the second switch circuit is on, the state of the signal output by the signal output terminal LDJC changes, which indicates the leakage, or no leakage occurs.
In order to filter out the interference waves introduced by the inductive element 11, the two ends of the first switch circuit are also connected with a filter capacitor C2 in parallel, so that the accuracy of the back-end detection judgment is improved.
In this embodiment, a specific circuit composition of the amplifying circuit 12 is provided, as shown in fig. 5, the first switching circuit and the second switching circuit are respectively implemented by using one NPN triode, and the voltage dividing circuit is implemented by using one voltage dividing resistor R1, where the first switching circuit is a first NPN triode N1, the second switching circuit is a second NPN triode N2, a collector of the first NPN triode N1 is connected to the voltage dividing resistor R1, an emitter of the first NPN triode N1 is connected to ground, a base of the second NPN triode N2 is connected to the sensing element 11, a collector of the second NPN triode N2 is connected to the power supply, and an emitter of the second triode N2 is connected to a base of the first NPN triode N1. When the induced signal generated by the leakage reaches the turn-on voltage of the second NPN triode N2, the second NPN triode N2 is turned on, the base of the first NPN triode N1 is connected to the power supply module through the second NPN triode N2, and accordingly the first NPN triode N1 is turned on, and the state of the signal output by the signal output terminal LDJC changes, which indicates the leakage.
Of course, the amplifying circuit 12 is not limited to the above-mentioned components, and may be implemented by an integrated operational amplifier, besides the above-mentioned switch circuit.
The shielding case comprises
The control module is connected with the communication module for send away the electric leakage signal through wired or wireless mode, if can send the suggestion on user's mobile terminal equipment through radio communication, can also send on total power switch for cut off total power switch, not only can prevent the electric shock danger that the electric leakage of certain electrical equipment leads to, can also prevent the emergence of the electric shock danger that electric leakage conduction leads to other electrical apparatus.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.
Claims (10)
1. An electrical leakage detection alarm system, comprising:
a control module;
the leakage detection module is used for detecting leakage information, generating a leakage detection signal and sending the leakage detection signal to the control module;
the human body detection module is provided with one or more than one human body detection modules and is used for detecting human bodies in the detection area of the human body detection module, generating a human body detection signal and sending the human body detection signal to the control module;
and the alarm module is provided with one or more alarm modules, the alarm module is connected with the control module, and when the control module receives the electric leakage detection signal, the control module controls the alarm module which is closest to the human body detection module for detecting the human body to alarm.
2. The electrical leakage detection alarm system according to claim 1, wherein the control module has one or more control modules, when there are a plurality of the control modules, the control modules are in communication connection with each other, the human body detection module is connected with one control module, and the human body detection module and the alarm module adjacent to the human body detection module are connected with the same control module.
3. The electrical leakage detection and alarm system according to claim 2, wherein the plurality of control modules are control modules of a plurality of intelligent devices, and the human body detection module and the alarm module are respectively disposed on the corresponding intelligent devices.
4. The electrical leakage detection alarm system according to claim 3, wherein the electrical leakage detection module has one or more than one, at least some of the intelligent devices are respectively provided with an electrical leakage detection module, and the electrical leakage detection module is connected with a control module of the intelligent device where the electrical leakage detection module is located.
5. An electrical leakage detection and alarm system according to any one of claims 1-4, wherein the human body detection module is an ultrasonic detection module or an infrared human body detection module.
6. The electrical leakage detection alarm system according to any one of claims 1 to 4, wherein the electrical leakage detection module comprises:
an inductive element;
the input end of the amplifying circuit is connected with the sensing element, and the output end of the amplifying circuit is connected with the alarm module or the control module;
the power supply module is used for supplying power to the amplifying circuit;
and the induction element and the detected object are wholly or partially enclosed in the shielding case, and the shielding case is used for shielding an electric field outside the shielding case.
7. The electrical leakage detection alarm system according to claim 6, wherein the amplifying circuit comprises a first switch circuit and a voltage dividing circuit, one end of the voltage dividing circuit is connected to the power module, the other end of the voltage dividing circuit is connected to ground through the first switch circuit, and the sensing signal generated by the sensing element is used for controlling a conducting state of the first switch circuit.
8. The electrical leakage detection alarm system according to claim 7, wherein the amplifying circuit further comprises a second switch circuit, one end of the second switch circuit is connected to the power module, the other end of the second switch circuit is connected to the control terminal of the first switch circuit, and the control terminal of the second switch circuit is connected to the sensing element.
9. The electrical leakage detection alarm system according to claim 7, wherein a filter capacitor is further connected in parallel to the two ends of the first switch circuit.
10. The electrical leakage detection and alarm system according to claim 8, wherein the first switching circuit is a first NPN transistor, the second switching circuit is a second NPN transistor, a collector of the first NPN transistor is connected to the voltage dividing circuit, an emitter of the first NPN transistor is connected to ground, a base of the second NPN transistor is connected to the sensing element, a collector of the second NPN transistor is connected to the power source, and an emitter of the second NPN transistor is connected to the base of the first NPN transistor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921643149.6U CN211577378U (en) | 2019-09-29 | 2019-09-29 | Electric leakage detection alarm system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921643149.6U CN211577378U (en) | 2019-09-29 | 2019-09-29 | Electric leakage detection alarm system |
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| CN211577378U true CN211577378U (en) | 2020-09-25 |
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| CN201921643149.6U Active CN211577378U (en) | 2019-09-29 | 2019-09-29 | Electric leakage detection alarm system |
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