CN110855276B - Wireless control system of safety device - Google Patents
Wireless control system of safety device Download PDFInfo
- Publication number
- CN110855276B CN110855276B CN201911143232.1A CN201911143232A CN110855276B CN 110855276 B CN110855276 B CN 110855276B CN 201911143232 A CN201911143232 A CN 201911143232A CN 110855276 B CN110855276 B CN 110855276B
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- Prior art keywords
- safety device
- time
- control system
- safety
- installation
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Abstract
The invention provides a wireless control system of a safety device, comprising: a plurality of wirelessly controllable safeties; the control terminals are respectively connected with the safety devices in a wireless mode; the control terminal controls the on/off or reset of the safety device, thereby controlling the on/off of a circuit connected with the safety device. The wireless control system of the safety device realizes the function of remotely controlling the on, off or reset of the safety device; thereby realizing the control of the on-off of the electric appliance circuit connected with the safety device.
Description
Technical Field
The invention relates to the technical field of safeties, in particular to a wireless control system of a safeties.
Background
Currently, a safety device is used as an overcurrent protection switch and mainly used for controlling the working electricity of a circuit. The safety device is connected in the circuit in daily life, so that the overcurrent can be effectively prevented. The safety device acts to protect the safety of the electrical appliance when the power supply load fails or the line is short-circuited. However, when the power supply load fault or the line short circuit fault is removed, the safety device is reset to the safety device setting position, and then normal power supply can be performed.
Disclosure of Invention
One of the purposes of the present invention is to provide a wireless control system for a safety device, which can realize the function of remotely controlling the on/off or resetting of the safety device.
The embodiment of the invention provides a wireless control system of a safety device, which comprises the following components:
a plurality of wirelessly controllable safeties;
the control terminals are respectively connected with the safety devices in a wireless mode;
the control terminal controls the on/off or reset of the safety device, thereby controlling the on/off of a circuit connected with the safety device.
Optionally, the safety device wireless control system further includes:
the control platform is respectively connected with the safety devices in a wireless way;
the control platform numbers the safety device connected to the platform and stores the installation position of the safety device corresponding to the number.
Optionally, the safety device wireless control system further comprises:
the voltage and current monitoring devices are connected with the safety devices in a one-to-one correspondence manner and are used for monitoring the current and the voltage of the safety devices; the voltage and current monitoring devices are all in communication connection with the control platform.
Optionally, the safety device wireless control system further includes:
the cameras are arranged in front of the safety device in a one-to-one correspondence manner and are used for shooting front images of the safety device; the cameras are all in communication connection with the control platform;
the control platform analyzes the front image of the safety device and determines the state of the safety device;
and when the state of the safety device is abnormal, outputting the installation position and the abnormal picture of the safety device to a mobile phone of a maintenance personnel.
Optionally, the control platform is further configured to make a maintenance plan and send the maintenance plan to a mobile phone of a maintainer, and specifically includes:
acquiring the installation time and the production time of each safety device;
calculating life time according to the installation time and the production time;
screening each safety device in preset time to obtain the safety device reaching the service life and the installation position of the safety device;
setting a maintenance route according to the installation position of the safety device reaching the service life, and setting a maintenance time according to a preset maintenance time;
and making the maintenance plan based on the maintenance route and the maintenance time.
Optionally, the calculating the life time according to the installation time and the production time includes:
obtaining a conversion ratio of storage loss to use loss; converting the time period from the installation time to the production time into the depletion time based on the conversion ratio
And obtaining the preset service life, and adding the difference value between the preset service life and the loss time on the basis of the installation time to obtain the service life time.
Optionally, the step of making a maintenance route according to the installation position includes:
counting the number of installation positions of the safety device reaching the service life;
when the number of the installation positions of the safety device reaching the service life is larger than a first preset value and smaller than a second preset value;
marking the installation positions of the safety devices reaching the service life on a map, and making a circle by taking the installation positions farthest from each other as circle points;
dividing a circle center of the circle into two first areas according to the principle that the number of the installation positions is equal by taking the circle center as a straight line; then, respectively making a straight line by the circle centers according to the principle that the number of the installation positions is equal, and dividing the two first areas into four second areas; then, dividing the four second areas into eight third areas according to the principle that the circle centers are respectively made into a straight line and the number of the installation positions is equal;
a service path is defined in each of the third areas, the service path passing through all of the mounting locations in the third area.
Optionally, the control platform analyzes the front image of the safety device and determines the state of the safety device; comprising the following steps:
acquiring a prestored front image of a normally-working safety device and a normally-closed front image of the safety device;
comparing the front image of the safety device acquired through the camera with a pre-stored front image of the safety device which works normally and a pre-stored front image of the safety device which is closed normally;
when the front image of the safety device is the same as the prestored front image of the safety device which works normally, the safety device is determined to work normally;
when the front image of the safety device is the same as the pre-stored front image of the safety device which is normally closed, determining that the safety device is normally closed;
and when the images are different, extracting an abnormal region in the front image of the safety device, which is acquired by the camera, and determining the abnormal information of the safety device according to the position of the abnormal region in the safety device.
Optionally, the wirelessly controllable safety device comprises:
a case body;
the alternating current electronic safety circuit is arranged in the box body and is used for being connected with a power end of an electric appliance;
the execution device is arranged in the box body and used for controlling the on/off or the reset of the alternating current electronic insurance circuit;
the controller is arranged in the box body, is electrically connected with the execution device and is used for controlling the execution device to act;
and the wireless communication module is arranged in the box body and is respectively connected with the controller and the control terminal.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1A is a schematic diagram of a wireless control system of a safety device according to an embodiment of the invention;
FIG. 1B is a schematic diagram of a wireless control system of another safety device according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an AC electronic fuse circuit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an implementation apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of another implementation apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of another implementation apparatus according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of another implementation apparatus according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of another implementation apparatus according to an embodiment of the present invention;
fig. 8 is a schematic diagram of another implementation apparatus according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
The embodiment of the invention provides a wireless control system of a safety device, as shown in fig. 1A, comprising:
a plurality of wirelessly controllable safeties 41;
the control terminals 6 are respectively connected with the safeties 41 in a wireless manner;
the control terminal 6 controls the on/off or resetting of the safety device 41, thereby controlling the on/off of the circuit to which the safety device 41 is connected.
The working principle and the beneficial effects of the technical scheme are as follows:
the safety device 41 is connected into the circuit of the electrical appliance, and when overcurrent occurs, the safety device 41 automatically breaks the safety of the circuit of the electrical appliance. The wirelessly controllable safety device 41 is characterized in that a wireless communication module and a control device are added on the basis of the safety device 41, so that the function of remotely controlling the safety device 41 to be opened, closed or reset through the control terminal 6 is realized, and further, the on-off of an access circuit of the safety device 41 is remotely controlled.
To facilitate the management of a plurality of safeties 41, in one embodiment, the safeties wireless control system further comprises:
the control platforms are respectively connected with the safety devices 41 in a wireless way;
the control platform numbers the safeties 41 connected to the platform and stores the mounting positions of the safeties 41 in correspondence with the numbers.
To manage the voltage circuit of the safety device 41, in one embodiment, the safety device wireless control system further comprises:
the voltage and current monitoring devices are connected with the safeties 41 in a one-to-one correspondence manner and are used for monitoring the current and the voltage of the safeties 41; the voltage and current monitoring devices are all in communication connection with the control platform.
To remotely determine the status of the safe 41, in one embodiment, the safe wireless control system further comprises:
the cameras are arranged right in front of the safety device 41 in a one-to-one correspondence manner and are used for shooting front images of the safety device 41; the cameras are all in communication connection with the control platform;
the control platform analyzes the front image of the safety device 41 and determines the state of the safety device 41;
when the state of the safety device 41 is abnormal, the installation position and the abnormal picture of the safety device 41 are output to the mobile phone of the maintenance personnel.
In order to facilitate the work of maintenance personnel, in one embodiment, the control platform is further used for making a maintenance plan and sending the maintenance plan to a mobile phone of the maintenance personnel, and specifically comprises:
acquiring the installation time and the production time of each safety device 41;
calculating life time according to the installation time and the production time;
screening each safety device 41 at preset time to obtain the safety device 41 reaching the service life and the installation position thereof;
a maintenance route is made according to the installation position of the safety device 41 reaching the service life, and a maintenance time is made according to a preset maintenance time;
and making a maintenance plan based on the maintenance route and the maintenance time.
And (5) a maintenance plan is made through the control platform and is directly sent to maintenance personnel. The maintenance personnel directly work according to the plan, so that the working efficiency of the maintenance personnel is improved.
To accurately determine the life time of the safety device 41, in one embodiment, calculating the life time from the installation time, the production time, includes:
obtaining a conversion ratio of storage loss to use loss; converting the time period from the installation time to the production time into the depletion time based on the conversion ratio
And obtaining the preset service life, and adding the difference value between the preset service life and the loss time on the basis of the installation time to obtain the service life time.
The life of the safety device 41 is two years (factory test data), and the life is obtained by factory test, so that the generation time and the installation time of the tested safety device 41 can be approximately the same time, and the life is brought by using loss; in actual use, the installation time is later than the production time, and the storage loss is also brought in the storage process. The storage time (the time from the production time to the installation time) should also be taken into account when calculating the actual lifetime.
In one embodiment, the routing of maintenance based on the installation location includes:
counting the number of mounting positions of the safety device 41 reaching the life;
when the number of mounting positions of the life-reaching safety device 41 is greater than the first preset value and less than the second preset value;
marking the mounting positions of the safety device 41 reaching the service life on a map, and making a circle by taking the mounting position farthest away as a circle point;
dividing a circle center of a circle into two first areas according to the principle that the number of the installation positions is equal by taking the circle center as a straight line; then, respectively making a straight line with the circle centers and dividing the two first areas into four second areas according to the principle that the number of the installation positions is equal; then, dividing the four second areas into eight third areas according to the principle that the circle centers respectively make a straight line and the number of the installation positions is equal;
a service route is defined in each third zone, the service route passing through all of the mounting locations in the third zone.
The working principle and the beneficial effects of the technical scheme are as follows:
counting the number of mounting positions of the safety device 41 reaching the life; when the number is less than 10 (which can be set according to the need), a maintenance route is directly determined, and the maintenance route passes through all the installation positions of the safety device 41 reaching the life. When the number is more than 10 and less than 20 (which can be set according to the requirement), marking the installation positions of the safety device 41 reaching the service life on a map, and making a circle by taking the installation positions farthest from each other as circle points; dividing a circle center of a circle into two first areas according to the principle that the number of the installation positions is equal by taking the circle center as a straight line; a first zone defines a path and two maintenance paths are defined together. When the number is more than 20 and less than 40, marking the mounting positions of the safety device 41 reaching the service life on a map, and making a circle by taking the mounting positions farthest apart as circle points; dividing a circle center of a circle into two first areas according to the principle that the number of the installation positions is equal by taking the circle center as a straight line; then, respectively making a straight line with the circle centers and dividing the two first areas into four second areas according to the principle that the number of the installation positions is equal; a second zone defines a path and a total of four maintenance paths are defined. When the number is greater than 40 (the first preset value) and less than 80 (the second preset value), marking the installation positions of the safety device 41 reaching the service life on a map, and making a circle by taking the installation positions farthest from each other as circle points; dividing a circle center of a circle into two first areas according to the principle that the number of the installation positions is equal by taking the circle center as a straight line; then, respectively making a straight line with the circle centers and dividing the two first areas into four second areas according to the principle that the number of the installation positions is equal; then, dividing the four second areas into eight third areas according to the principle that the circle centers respectively make a straight line and the number of the installation positions is equal; a third zone defines a route, and a total of eight maintenance routes are defined. And so on.
In one embodiment, the control platform analyzes the front image of the safe 41 to determine the state of the safe 41; comprising the following steps:
acquiring a prestored front image of the safety device 41 which is normally operated and a normally closed front image of the safety device 41;
the front image of the safety device 41 acquired through the camera is respectively compared with a pre-stored front image of the safety device 41 which works normally and a pre-stored front image of the safety device 41 which is closed normally;
when the front image of the safety device 41 is the same as the prestored front image of the safety device 41 which works normally, the safety device 41 is determined to work normally;
when the front image of the safety device 41 is the same as the pre-stored front image of the safety device 41 which is normally closed, determining that the safety device 41 is normally closed;
when the images are different, the abnormal areas in the front image of the safety device 41 acquired by the camera are extracted, and the abnormal information of the safety device 41 is determined according to the positions of the abnormal areas in the safety device 41.
Through the steps, the control platform intelligently judges the state of the safety device 41, so that the state of the safety device 41 is updated in time.
In one embodiment, as shown in FIG. 1B, the wirelessly controllable safeties 41 comprise:
a case 1;
the alternating current electronic safety circuit 2 is arranged in the box body 1 and is used for being connected with a power end of an electric appliance;
an executing device 3, which is arranged in the box body 1 and is used for controlling the on/off or resetting of the alternating current electronic insurance circuit 2;
the controller 4 is arranged in the box body 1, is electrically connected with the execution device 3 and is used for controlling the execution device 3 to act;
the wireless communication module 5 is arranged in the box body 1 and is connected with the controller 4.
The working principle and the beneficial effects of the technical scheme are as follows:
the control terminal 6 is in wireless connection with the wireless communication module 5;
the controller 4 receives a control instruction of the control terminal 6 through the wireless communication module 5, and the controller 4 controls the execution device 3 to act, so that the on/off or the reset of the alternating current electronic safety circuit 2 is realized. The ac electronic safety circuit 2 is used as a core component of the case 1, and the connection of the safety device 41 to the power end of the electrical appliance is actually the connection of the ac electronic safety circuit 2 to the power end of the electrical appliance. The user sends a control instruction through the control terminal 6; the controller 4 receives a control instruction of the control terminal 6 through the wireless communication module 5, and the controller 4 controls the execution device 3 to act, so that the on/off or the reset of the alternating current electronic safety circuit 2 is realized. The wireless control system of the safety device can remotely control the on/off of the safety device 41 through the control terminal 6, thereby realizing the on/off control of an electric appliance circuit and realizing the on/off control of the electric appliance for remote control. When the user is not at home, the safety device 41 can be remotely controlled by the control terminal 6 to turn off the power of the electrical appliance. And after the power supply load fault or the line short circuit fault is removed, normal power supply can be performed without resetting the safety device 41 to the setting position of the safety device 41, and the reset can be completed by only using the control terminal 6 and normal power supply of an electric appliance is performed. The control terminal 6 includes: cell phone, tablet computer. The wireless communication module 5 includes: one or more of Bluetooth, WIFI, 3/4/5G and infrared.
In one embodiment, as shown in fig. 2, the ac electronic fuse circuit 2 includes:
an ac contactor 7 for controlling the on or off of the ac electronic safety circuit 2;
a reset button 8 for controlling the reset of the ac electronic fuse 2.
The working principle and the beneficial effects of the technical scheme are as follows:
the ac electronic protection circuit 2 is shown in fig. 2, which is actually an overcurrent protection switch. The 220V alternating current is reduced by the power transformer T, the transistor diode VD2 is rectified in a half-wave mode, and the capacitor C2 outputs about 12V direct current after filtering, so that the control circuit works and is powered. R1 is a detection resistor connected in series in the loop of the user phase line L, and the resistance value of the detection resistor is only 0.2 omega (variable); there is no effect on the main circuit. The current through it is the sum of the current of the individual appliances of the user. When the current through R1 reaches 3A (effective value), the voltage U1 (effective value) =0.6V at R1, um (peak voltage) =2 to the power of-2×0.6v≡o.8v, the ac voltage is half-wave rectified by the transistor VD1 (forward tube voltage drop is 0.5V when small current is measured) and filtered by the capacitor C1, and then a dc voltage of about 0.3V is output, which cannot trigger the unidirectional thyristor' VS (VS trigger threshold voltage is 0.6V). If the power supply is abnormal and the current continues to increase, for example, the current reaches more than 4A, then the Um at the two ends of R1 is more than or equal to 2 to the power of-2 times 4A times 0.2 omega (1.1V), the output voltage of C1 reaches more than 0.6V, VS obtains proper trigger voltage to conduct, electromagnetic relay K is attracted, normally open contact KH of the electromagnetic relay K is connected with the power supply of an alternating current contactor KM, and a high-capacity normally closed contact of the alternating current contactor automatically cuts off an alternating current power supply loop, thereby realizing the function of a fuse. In the circuit, R2 is a current limiting resistor, and the control electrode of the unidirectional thyristor VS is protected from being damaged by overcurrent. When the load is short-circuited, 220V alternating current voltage is almost fully applied to the two ends of R1 instantaneously, and the average current flowing through the VS control electrode does not exceed 9.9mA due to the existence of R2. If there is no R2, VS will be over-current damaged at this instant. R2, R3 and C1 form an anti-misoperation circuit, which can effectively eliminate misoperation of an electronic insurance circuit caused by various instant strong currents (such as starting-up currents of a color TV, a refrigerator and the like) in a power grid. The magnitude of the C1 capacity directly affects the sensitivity of the electronic fuse circuit to operation. R4 and the light-emitting diode VD3 form an electronic insurance circuit action indicating circuit. SB is a reset button 8. After the power supply load fault or the line short circuit fault is removed, normal power supply can be recovered by only pressing the reset button 8.
In one embodiment, as shown in fig. 3, the executing means 3 includes:
the rotating shaft 10 is vertically and fixedly connected with the switch 9 of the alternating current contactor 7; a first transmission gear 11 is fixedly arranged at one end of the rotating shaft 10, which is far away from the switch 9 of the alternating current contactor 7;
a first motor 12 electrically connected to the controller 4; a second transmission gear 13 is arranged at the output end of the first motor 12; the first transmission gear 11 is meshed with the second transmission gear 13.
The working principle and the beneficial effects of the technical scheme are as follows:
the switch 9 of the ac contactor 7 is a toggle switch, the controller 4 controls the first motor 12 to act, and the first motor 12 drives the switch 9 of the ac contactor 7 to rotate through the rotating shaft 10, so as to realize opening and closing of the ac contactor 7.
In one embodiment, the reset button 8 comprises: a normally closed self-reset button.
In one embodiment, as shown in fig. 4, the reset button 8 includes:
the button comprises a button body 14, wherein an arc-shaped groove 17 is formed in the side surface of the button body 14 and is arranged in a button accommodating groove 15 on the box body 1;
a return spring 16 disposed in the button accommodation groove 15 and located below the button body 14;
the execution device 3 includes:
the second motor 21 is electrically connected with the controller 4, and the output end of the second motor is provided with a third transmission gear 20;
a reset lever 19, a reset lever accommodating cavity 18 arranged in the box body 1; a rack is arranged on the lower end surface of the reset rod 19 and is meshed with a third transmission gear 20; one end of the reset rod accommodating cavity 18 is communicated with the button accommodating groove 15; the arc-shaped groove 17 is positioned at the position where one end of the reset rod accommodating cavity 18 is communicated with the button accommodating groove 15, and the height of the arc-shaped groove 17 is larger than that of the position where one end of the reset rod accommodating cavity 18 is communicated with the button accommodating groove 15.
The working principle and the beneficial effects of the technical scheme are as follows:
the controller 4 controls the second motor 21 to act, so that the reset rod 19 moves in the reset rod 19 accommodating groove, when the reset rod accommodating cavity 18 is communicated with the button accommodating groove 15, the reset rod starts to enter the arc-shaped groove 17, the button body 14 moves downwards due to the cooperation of the arc-shaped groove 17 and the reset rod 19, and after a certain distance of downward movement, the pressing operation of the button body 14 is realized, so that the reset action of the reset button 8 is realized.
To reduce friction between the reset lever 19 and the arcuate recess 17, the life of the reset lever 19 is extended. In one embodiment, the return arm 19 is arcuate at an end adjacent the arcuate recess 17.
In one embodiment, as shown in fig. 5, the first motor 12 and the second motor 21 are the same motor.
The working principle and the beneficial effects of the technical scheme are as follows:
the second transmission gear 13 and the third transmission gear 20 are coaxially arranged at the output end of the motor; and simultaneously drives the action of the alternating current contactor 7 and the reset button 8. When the same motor is adopted for driving, the position of the switch 9 of the alternating current contactor 7, the position of the reset button 8 and the position of the motor are L-shaped; when the switch 9 of the ac contactor 7 is pushed up, the reset button 8 must be pressed first before the circuit is completed.
In one embodiment, as shown in fig. 6 and 7, the safe wireless control system further comprises:
a fuse holder 22 for setting a fuse 23; the lower end surface of the fuse holder 22 is provided with a first toothed guide rail 24;
a third motor 27 electrically connected to the controller 4; the output end of the third motor 27 is provided with a fourth transmission gear 28, and the fourth transmission gear 28 is meshed with the first toothed guide rail 24;
two parallel first slide rails 26 are arranged in the box body 1, the cross section of each first slide rail 26 is I-shaped, and a slide groove which is matched with the first slide rail 26 is arranged on the lower end surface of the fuse seat 22;
the first toothed rail 24 is arranged parallel to the first slide rail 26.
The working principle and the beneficial effects of the technical scheme are as follows:
in order to realize double protection of the electric appliance, the fuse 23 is also arranged in the safety device 41 of the invention, and the fuse 23 is connected into the circuit of the electric appliance, thereby providing a second double guarantee for the electric safety of the electric appliance. The controller 4 controls the third motor 27 to act, so that the fuse holder 22 moves on the first slide rail 26, and the fuse 23 is connected to the electric appliance circuit. To realize the connection of the fuse 23, an access body 29 is respectively provided at both sides of the direction perpendicular to the moving direction of the fuse holder 22, and the access body 29 is connected to the electrical circuit.
In one embodiment, as shown in fig. 7, the upper surface of the fuse holder 22 is provided with two fuses 23 in parallel.
The working principle and the beneficial effects of the technical scheme are as follows:
when one of the fuses 23 on the fuse holder 22 burns out, there is also a spare fuse holder 22. The fuse 23 is burned out by accident, for example: when the high-power electric appliance is connected to burn, a user only needs to send an instruction for replacing the fuse 23 to the controller 4 through the control terminal 6; the controller 4 controls the third motor 27 to act, so that the fuse holder 22 moves on the first slide rail 26, and the spare fuse 23 is connected to an electrical appliance circuit; the fuse 23 replacement operation is completed.
In one embodiment, as shown in fig. 8, the first motor, the second motor and the third motor are the same motor and are arranged on the motor base; the second transmission gear, the third transmission gear and the fourth transmission gear are the same transmission gear;
the lower end surface of the motor seat is provided with a second toothed guide rail 31; two parallel second slide rails 30 are arranged in the box body 1, the section of each second slide rail 30 is I-shaped, and a chute which is adaptive to the second slide rail 30 is arranged on the lower end surface of the motor base;
the second toothed guide rail 31 is arranged in parallel with the second slide rail 30;
a fourth motor 33 electrically connected to the controller 4; the output end of the fourth motor 33 is provided with a fifth transmission gear which is meshed with the second toothed guide rail 31;
when the controller 4 controls the fourth motor 33 to act, the gear at the output end of the motor arranged on the motor base is meshed with the rack, the first slide rail 26 and the first transmission gear 11 in sequence;
when the controller 4 receives a control instruction of the control terminal 6 to be started, the controller 4 controls the fourth motor 33 to act, the gear at the output end of the motor on the motor base is meshed with the rack meshed first toothed guide rail 24, and the motor on the motor base is controlled to act to connect the fuse 23 into a circuit; then the controller 4 controls the fourth motor 33 to act so as to mesh a gear at the output end of the motor on the motor base with the first transmission gear 11, and controls the motor on the motor base to act so as to push the switch of the alternating current contactor 7;
when the controller 4 receives a control instruction of the control terminal 6 to be closed, the controller 4 controls the fourth motor 33 to act so as to mesh a gear at the output end of the motor on the motor base with the first transmission gear 11, and controls the motor on the motor base to act so as to pull down the switch of the alternating current contactor 7; then the controller 4 controls the fourth motor 33 to act, the gear at the output end of the motor on the motor seat is meshed with the rack meshed first toothed guide rail 24, and the motor on the motor seat is controlled to act to move the fuse 23 out of the circuit;
when the controller 4 receives a control instruction of the control terminal 6 to reset and turn on after the power supply load fault or the line short circuit fault is removed, the controller 4 controls the fourth motor 33 to act, the gear of the motor output end on the motor base is meshed with the rack meshed first toothed guide rail 24, and the motor on the motor base is controlled to act to connect the fuse 23 to a power supply; then, a gear at the output end of a motor on the motor base is meshed with the rack, and the motor on the motor base is controlled to act to reset the reset button 8; then, a gear at the output end of the motor on the motor base is meshed with the first transmission gear 11, and the motor on the motor base is controlled to act to push the switch of the alternating current contactor 7.
The working principle and the beneficial effects of the technical scheme are as follows:
the other motor is driven to move upwards in the motor shaft by one motor, so that the transmission gears arranged at the output end of the other motor are respectively meshed with the rack, the first transmission gear 11 and the first toothed guide rail 24 at different positions; the three functions of the connection or disconnection of the fuse 23, the pressing of the reset button 8 and the pushing or pulling of the switch of the alternating current contactor 7 can be realized by using two motors; wherein, after the reset button 8 is pressed by the motor action, the motor is required to rotate reversely, and the reset rod 19 is retracted to the original position.
When the motor is in normal use, a user adopts the control terminal 6 to send a control instruction (start), namely when the controller 4 receives the control instruction of the control terminal 6 to start, the controller 4 controls the fourth motor 33 to act, the gear at the output end of the motor on the motor base is meshed with the rack meshed first toothed guide rail 24, and the motor on the motor base is controlled to act to connect the fuse 23 into a circuit; then the controller 4 controls the fourth motor 33 to act so as to mesh a gear at the output end of the motor on the motor base with the first transmission gear 11, and controls the motor on the motor base to act so as to push the switch of the alternating current contactor 7; thus, the power supply circuit is conducted, and the remote opening operation is completed.
When the motor is in normal use, a user adopts the control terminal 6 to send a control instruction (closing), namely when the controller 4 receives the control instruction of the control terminal 6 to be closed, the controller 4 controls the fourth motor 33 to act so as to mesh a gear at the output end of the motor on the motor base with the first transmission gear 11, and controls the motor on the motor base to act so as to pull down the switch of the alternating current contactor 7; then the controller 4 controls the fourth motor 33 to act, the gear at the output end of the motor on the motor seat is meshed with the rack meshed first toothed guide rail 24, and the motor on the motor seat is controlled to act to move the fuse 23 out of the circuit; thus, the power supply circuit is cut off, and the remote closing operation is completed.
When the power supply load fault or the line short circuit fault is eliminated, the user does not need to return to the position where the safety device 41 is arranged, and the user can directly adopt the control terminal 6 to send a control instruction (reset on), namely when the control terminal 6 is reset on after the power supply load fault or the line short circuit fault is eliminated, the controller 4 controls the fourth motor 33 to act, the gear at the output end of the motor on the motor base is meshed with the rack meshed first toothed guide rail 24, and the motor on the motor base is controlled to act to connect the fuse 23 into a power supply; then, a gear at the output end of the motor on the motor seat is meshed with a rack of the reset rod 19, and the motor on the motor seat is controlled to reset; then, a gear at the output end of the motor on the motor base is meshed with the first transmission gear 11, and the motor on the motor base is controlled to act to push the switch of the alternating current contactor 7.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. A wireless control system for a safety device, comprising:
a plurality of wirelessly controllable safeties;
the control terminals are respectively connected with the safety devices in a wireless mode;
the control terminal controls the on/off or reset of the safety device, so as to control the on/off of a circuit connected with the safety device;
the wirelessly controllable safety device comprises: a case body; the alternating current electronic safety circuit is arranged in the box body and is used for being connected with a power end of an electric appliance; the execution device is arranged in the box body and used for controlling the on/off or the reset of the alternating current electronic insurance circuit; the controller is arranged in the box body, is electrically connected with the execution device and is used for controlling the execution device to act; the wireless communication module is arranged in the box body and is respectively connected with the controller and the control terminal; wherein, the alternating current electronic insurance circuit includes: an alternating current contactor for controlling the on or off of the alternating current electronic safety circuit; a reset button for controlling the reset of the AC electronic insurance circuit;
wherein the execution means includes: the second motor is electrically connected with the controller, and the output end of the second motor is provided with a third transmission gear; the reset rod is arranged in the reset rod accommodating cavity in the box body; a rack is arranged on the lower end face of the reset rod and meshed with the third transmission gear; one end of the reset rod accommodating cavity is communicated with the button accommodating groove; the arc-shaped groove is positioned at the communication position of one end of the reset rod accommodating cavity and the button accommodating groove, and the height of the arc-shaped groove is larger than that of the communication position of one end of the reset rod accommodating cavity and the button accommodating groove.
2. The safe wireless control system of claim 1, wherein the safe wireless control system further comprises:
the control platform is respectively connected with the safety devices in a wireless way;
the control platform numbers the safety device connected to the platform and stores the installation position of the safety device corresponding to the number.
3. The safe wireless control system of claim 2, wherein the safe wireless control system further comprises:
the voltage and current monitoring devices are connected with the safety devices in a one-to-one correspondence manner and are used for monitoring the current and the voltage of the safety devices; the voltage and current monitoring devices are all in communication connection with the control platform.
4. A safe wireless control system according to claim 3, wherein the safe wireless control system further comprises:
the cameras are arranged in front of the safety device in a one-to-one correspondence manner and are used for shooting front images of the safety device; the cameras are all in communication connection with the control platform;
the control platform analyzes the front image of the safety device and determines the state of the safety device;
and when the state of the safety device is abnormal, outputting the installation position and the abnormal picture of the safety device to a mobile phone of a maintenance personnel.
5. The wireless control system of claim 4, wherein the control platform is further configured to create a maintenance plan and send the maintenance plan to a mobile phone of a maintenance person, and the wireless control system comprises:
acquiring the installation time and the production time of each safety device;
calculating life time according to the installation time and the production time;
screening each safety device in preset time to obtain the safety device reaching the service life and the installation position of the safety device;
a maintenance route is made according to the installation position, and a maintenance time is made according to a preset maintenance time;
and making the maintenance plan based on the maintenance route and the maintenance time.
6. The safe wireless control system of claim 5, wherein the calculating the life time based on the installation time and the production time comprises:
obtaining a conversion ratio of storage loss to use loss; converting the period of time from the installation time to the production time into a depletion time based on the conversion ratio;
and obtaining the preset service life, and adding the difference value between the preset service life and the loss time on the basis of the installation time to obtain the service life time.
7. The safe wireless control system of claim 5, wherein said routing maintenance based on said installation location comprises:
counting the number of installation positions of the safety device reaching the service life;
when the number of the installation positions of the safety device reaching the service life is larger than a first preset value and smaller than a second preset value;
marking the installation positions of the safety devices reaching the service life on a map, and making a circle by taking the installation positions farthest from each other as circle points;
dividing a circle center of the circle into two first areas according to the principle that the number of the installation positions is equal by taking the circle center as a straight line; then, respectively making a straight line by the circle centers according to the principle that the number of the installation positions is equal, and dividing the two first areas into four second areas; then, dividing the four second areas into eight third areas according to the principle that the circle centers are respectively made into a straight line and the number of the installation positions is equal;
a service path is defined in each of the third areas, the service path passing through all of the mounting locations in the third area.
8. The safe wireless control system of claim 4, wherein the control platform analyzes the safe frontal image to determine the safe status; comprising the following steps:
acquiring a prestored front image of a normally-working safety device and a normally-closed front image of the safety device;
comparing the front image of the safety device acquired through the camera with a pre-stored front image of the safety device which works normally and a pre-stored front image of the safety device which is closed normally;
when the front image of the safety device is the same as the prestored front image of the safety device which works normally, the safety device is determined to work normally;
when the front image of the safety device is the same as the pre-stored front image of the safety device which is normally closed, determining that the safety device is normally closed;
and when the images are different, extracting an abnormal region in the front image of the safety device, which is acquired by the camera, and determining the abnormal information of the safety device according to the position of the abnormal region in the safety device.
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