CN110855276A - Wireless control system of safety device - Google Patents
Wireless control system of safety device Download PDFInfo
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- CN110855276A CN110855276A CN201911143232.1A CN201911143232A CN110855276A CN 110855276 A CN110855276 A CN 110855276A CN 201911143232 A CN201911143232 A CN 201911143232A CN 110855276 A CN110855276 A CN 110855276A
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- safety device
- time
- installation
- safety
- wireless
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Selective Calling Equipment (AREA)
- Alarm Systems (AREA)
Abstract
The invention provides a wireless control system of a safety device, comprising: a plurality of wirelessly controllable safeties; the control terminals are respectively in wireless connection with the safety devices; the control terminal controls the on, off or reset of the safety device, so that the on and off of a circuit accessed by the safety device are controlled. The wireless control system of the safety device realizes the function of remotely controlling the safety device to be opened, closed or reset; therefore, the on-off of the electric appliance circuit connected with the safety device is controlled.
Description
Technical Field
The invention relates to the technical field of safety devices, in particular to a wireless control system of a safety device.
Background
At present, a safety device is used as an overcurrent protection switch and mainly used for controlling the working power of a circuit. The circuit is connected with a safety device in daily life, so that overcurrent can be effectively prevented. When the power supply load fails or the line short-circuit fails, the safety device acts to protect the safety of the electrical appliance. However, when the power supply load fault or the line short-circuit fault is eliminated, the safety device needs to be reset to the safety device setting position to normally supply power.
Disclosure of Invention
One of the objectives of the present invention is to provide a wireless control system for a safety device, which realizes the function of remotely controlling the safety device to open, close or reset.
The embodiment of the invention provides a wireless control system of a safety device, which comprises:
a plurality of wirelessly controllable safeties;
the control terminals are respectively in wireless connection with the safety devices;
the control terminal controls the on, off or reset of the safety device, so that the on and off of a circuit accessed by the safety device are controlled.
Optionally, the safety device wireless control system further includes:
the control platform is respectively in wireless connection with the safety device;
the control platform numbers the safes connected to the platform and stores the safes mounting positions corresponding to the numbers.
Optionally, the safety device wireless control system further includes:
the voltage and current monitoring devices are connected with the safety devices in a one-to-one correspondence mode and are used for monitoring the current and the voltage of the safety devices; and the voltage and current monitoring devices are in communication connection with the control platform.
Optionally, the safety device wireless control system further includes:
the cameras are arranged right in front of the safety device in a one-to-one correspondence mode and used for shooting images of the front face of the safety device; the cameras are in communication connection with the control platform;
the control platform analyzes the image of the front side of the safety device to determine the state of the safety device;
and when the state of the safety device is abnormal, outputting the installation position of the safety device and an abnormal picture to a mobile phone of a maintenance worker.
Optionally, the control platform is further configured to make a maintenance plan and send the maintenance plan to a mobile phone of a service person, and specifically includes:
acquiring the installation time and the production time of each safety device;
calculating the service life according to the installation time and the production time;
screening each safety device at preset time to obtain the safety devices reaching the service life and installation positions thereof;
making a maintenance route according to the installation position of the safety device reaching the service life, and making a maintenance time according to a preset maintenance time;
and formulating the maintenance plan based on the maintenance route and the maintenance time.
Optionally, the calculating the lifetime according to the installation time and the production time includes:
obtaining a conversion ratio of storage loss to use loss; converting the period of time from installation time to production time to a loss time based on the conversion ratio
And acquiring a preset service life, and adding a 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 position of the safety device reaching the service life on a map, and drawing a circle by taking the installation position farthest away as an upper point of the circle;
dividing the circle center of the circle into two first areas by taking a straight line according to the principle that the number of the installation positions is equal; then dividing the two first areas into four second areas according to the principle that the circle centers respectively make a straight line and 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 are respectively taken as a straight line and the number of the installation positions is equal;
a service route is designated within each of the third zones, the service route passing through all of the installation locations within the third zone.
Optionally, the control platform analyzes the image of the front side of the safety device to determine the state of the safety device; the method comprises the following steps:
acquiring prestored front images of the safety device which normally works and the safety device which normally closes;
comparing the front image of the safety device acquired by the camera with the pre-stored front image of the safety device working normally and the pre-stored front image of the safety device closed normally respectively;
when the image is the same as the pre-stored front image of the safety device which normally works, determining that the safety device normally works;
when the image 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 safety device is different from the safety device, extracting an abnormal area in the image of the front face of the safety device acquired by the camera, and determining the abnormal information of the safety device according to the position of the abnormal area in the safety device.
Optionally, the wireless controllable safety device comprises:
a box body;
the alternating current electronic safety circuit is arranged in the box body and is used for accessing the power supply end of an electric appliance;
the execution device is arranged in the box body and used for controlling the on, off or reset of the alternating current electronic safety circuit;
the controller is arranged in the box body, is electrically connected with the executing device and is used for controlling the action of the executing device;
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 hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1A is a schematic diagram of a wireless control system for a safety device according to an embodiment of the present invention;
FIG. 1B is a schematic diagram of a wireless control system for a safety device according to another embodiment of the present 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 diagram of an execution device according to an embodiment of the present invention;
FIG. 4 is a diagram of another embodiment of an apparatus for performing the method of the present invention;
FIG. 5 is a diagram of another exemplary implementation of the present invention;
FIG. 6 is a diagram of another exemplary implementation of the present invention;
FIG. 7 is a diagram of another exemplary implementation of the present invention;
FIG. 8 is a diagram of another exemplary implementation of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
An embodiment of the present invention provides a wireless control system for a safety device, as shown in fig. 1A, including:
a number of wirelessly controllable safeties 41;
the control terminals 6 are respectively connected with the safety devices 41 in a wireless mode;
the control terminal 6 controls the safety device 41 to be turned on, off or reset, thereby controlling the on/off of the circuit accessed by the safety device 41.
The working principle and the beneficial effects of the technical scheme are as follows:
the safety device 41 is connected to the circuit of the electrical appliance, and when the current is over-current, the safety device 41 automatically breaks the safety of the circuit of the electrical appliance. The wireless controllable safety device 41 is additionally provided with a wireless communication module and a control device 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 the connection and disconnection of the access circuit of the safety device 41 are further remotely controlled.
To facilitate management of multiple safeties 41, in one embodiment, the safe wireless control system further comprises:
the control platform is respectively in wireless connection with the safety device 41;
the control platform numbers the safeties 41 connected to the platform and stores the safeties 41 mounting locations in correspondence with the numbers.
To manage the voltage circuit of the safe 41, in one embodiment, the safe wireless control system further comprises:
the voltage and current monitoring devices are connected with the safety devices 41 in a one-to-one correspondence manner and are used for monitoring the current and the voltage of the safety devices 41; and the voltage and current monitoring devices are 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 mode and are used for shooting images of the front face of the safety device 41; the plurality of cameras are in communication connection with the control platform;
the control platform analyzes the front image of the safety device 41 to determine the state of the safety device 41;
when the state of the safety device 41 is abnormal, the installation position of the safety device 41 and an abnormal picture are output to a mobile phone of a maintenance worker.
In order to facilitate the work of the maintenance personnel, in one embodiment, the control platform is further configured to make a maintenance plan and send the maintenance plan to a mobile phone of the maintenance personnel, and specifically includes:
acquiring the installation time and the production time of each safety device 41;
calculating the service life according to the installation time and the production time;
screening each safety device 41 at preset time to obtain the safety devices 41 reaching the service life and the installation positions thereof;
making a maintenance route based on the installation position of the safety device 41 reaching the life, and making a maintenance time based on a preset maintenance time;
and making a maintenance plan based on the maintenance route and the maintenance time.
And 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, and the work efficiency of the maintenance personnel is improved.
To accurately determine the life time of the safety device 41, in one embodiment, the life time is calculated according to the installation time and the production time, and the life time comprises:
obtaining a conversion ratio of storage loss to use loss; converting the period from installation time to production time to loss time based on conversion ratio
And acquiring 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 41 is two years (factory test data), which is the result of factory testing, so the generation time and installation time of the tested safety 41 can be approximately the same time, and this life is a loss of use; 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 production time to installation time) should be taken into account when calculating the actual life time.
In one embodiment, routing the service based on the installation location comprises:
counting the number of mounting positions of the safeties 41 that reach the life;
when the number of mounting positions of the safety device 41 reaching the life is greater than the first preset value and less than the second preset value;
marking the installation position of the safety device 41 reaching the service life on a map, and drawing a circle by taking the installation position farthest away as a point on the circle;
dividing the circle center of the circle into two first areas by taking a straight line according to the principle that the number of the installation positions is equal; then dividing the two first areas into four second areas by respectively making a straight line at the circle centers according to the principle that the number of the installation positions is equal; then dividing the four second areas into eight third areas by respectively making a straight line at the circle center according to the principle that the number of the installation positions is equal;
a service route is assigned in each third zone, the service route passing through all installation 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 safeties 41 that reach the life; when the number is less than 10 (which may be set as required), a maintenance route is directly determined, and the maintenance route passes through all installation positions of the safety devices 41 reaching the life. When the number is more than 10 and less than 20 (which can be set according to requirements), the installation positions of the safety devices 41 reaching the service life are marked on the map, and a circle is drawn by taking the installation position farthest away as a point on the circle; dividing the circle center of the circle into two first areas by taking a straight line according to the principle that the number of the installation positions is equal; a first area defines a route and a total of two maintenance routes are defined. When the number is more than 20 and less than 40, the installation positions of the safers 41 reaching the life are marked on the map, and a circle is drawn by taking the installation position farthest away as a point on the circle; dividing the circle center of the circle into two first areas by taking a straight line according to the principle that the number of the installation positions is equal; then dividing the two first areas into four second areas by respectively making a straight line at the circle centers according to the principle that the number of the installation positions is equal; a second area defines a route, for a total of four maintenance routes. When the number is more than 40 (a first preset value) and less than 80 (a second preset value), marking the installation position of the safety device 41 reaching the service life on the map, and drawing a circle by taking the installation position farthest away as a point on the circle; dividing the circle center of the circle into two first areas by taking a straight line according to the principle that the number of the installation positions is equal; then dividing the two first areas into four second areas by respectively making a straight line at the circle centers according to the principle that the number of the installation positions is equal; then dividing the four second areas into eight third areas by respectively making a straight line at the circle center according to the principle that the number of the installation positions is equal; a third zone defines a route and eight maintenance routes. And so on.
In one embodiment, the control platform analyzes the image of the front of the safe 41 to determine the status of the safe 41; the method comprises the following steps:
acquiring pre-stored front images of the safety device 41 which normally works and the safety device 41 which normally closes;
comparing the front image of the safety device 41 acquired by the camera with the pre-stored front image of the safety device 41 which normally works and the pre-stored front image of the safety device 41 which normally closes;
when the image is the same as the pre-stored front image of the safety device 41 which normally works, the safety device 41 is determined to work normally;
determining that the safety device 41 is normally closed when the image is the same as the pre-stored front image of the safety device 41 which is normally closed;
and if the detected values are different, extracting an abnormal area in the image of the front surface of the safety device 41 acquired by the camera, and determining the abnormal information of the safety device 41 according to the position of the abnormal area in the safety device 41.
Through the steps, the control platform intelligently judges the state of the safety device 41, and the state of the safety device 41 is updated in time.
In one embodiment, as shown in FIG. 1B, a wirelessly controllable safe 41 comprises:
a box body 1;
the alternating current electronic safety circuit 2 is arranged in the box body 1 and is used for accessing the power supply end of an electric appliance;
the executive device 3 is arranged in the box body 1 and is used for controlling the on, off or reset of the alternating current electronic safety 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 action of the execution device 3;
and 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 wirelessly connected 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 alternating current electronic safety circuit 2 is switched on, switched off or reset. The alternating current electronic safety circuit 2 is used as a core component of the box body 1, and the safety device 41 is connected to the power supply end of the electric appliance, namely the alternating current electronic safety circuit 2 is connected to the power supply end of the electric appliance. A 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 alternating current electronic safety circuit 2 is switched on, switched off or reset. The wireless control system of the safety device can remotely control the on and off of the safety device 41 through the control terminal 6, realize the on and off control of the circuit of the electric appliance and realize the remote control of the on and off of the electric appliance. The safety device 41 can be remotely controlled by the control terminal 6 to turn off the power of the electric appliances when the user is not at home. And when the power supply load fault or the line short circuit fault is eliminated, the normal power supply can be realized without resetting the safety device 41 to the set position of the safety device 41, and the resetting can be completed only by using the control terminal 6 and the normal power supply of the electric appliance can be realized. The control terminal 6 includes: cell-phone, panel 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:
the alternating current contactor 7 is used for controlling the on or off of the alternating current electronic safety circuit 2;
and a reset button 8 for controlling the reset of the alternating current electronic safety circuit 2.
The working principle and the beneficial effects of the technical scheme are as follows:
the ac electronic fuse circuit 2 is shown in fig. 2 and is actually an overcurrent protection switch. The 220V alternating current is subjected to voltage reduction by a power transformer T, half-wave rectification by a crystal diode VD2 and filtering by a capacitor C2, and then, about 12V direct current is output for the work power consumption of the control circuit. R1 is a detection resistor connected in series in the L loop of the user phase line, and its resistance value is only 0.2 Ω (variable); has no influence on the main circuit. The current passing through it is the sum of the currents of the consumers. When the current passing through R1 reaches 3A (effective value), the voltage U1 (effective value) at R1 is 0.6V, Um (peak voltage) is 2 to the power of-2 × 0.6V ≈ o.8v, and this ac voltage is half-wave rectified by a crystal diode VD1 (forward tube voltage is 0.5V at the time of small current measurement) and filtered by a capacitor C1, and then outputs a dc voltage of about 0.3V, which cannot trigger the unidirectional thyristor' VS to conduct (VS trigger threshold voltage is 0.6V). If the current is increased continuously due to abnormal power supply, for example, when the current is increased to more than 4A, the power of minus 2 power multiplied by 4A multiplied by 0.2 omega which is more than or equal to 2 at the two ends of R1 is approximately equal to 1.1V, the output voltage of C1 reaches more than 0.6V, VS obtains proper trigger voltage to be conducted, an electromagnetic relay K is attracted, a normally open contact KH of the electromagnetic relay K is connected with a power supply of an alternating current contactor KM, and a large-capacity normally closed contact of the alternating current contactor automatically cuts off an alternating current power supply loop, so that the function of a fuse is realized. In the circuit, R2 is a current limiting resistor that protects the triac VS control electrode from damage by overcurrent. When the load is in short circuit, the 220V alternating current voltage is almost completely applied to two ends of R1 instantly, and the average current flowing through the VS control electrode cannot exceed 9.9mA due to the existence of R2. Without R2, the VS would over-current fail at this instant. R2 and R3 and C1 form a false action preventing circuit which can effectively eliminate false action of electronic safety circuit caused by various instant strong currents (such as starting current of color TV, refrigerator, etc.) in the power grid. The size of the C1 capacity directly affects the sensitivity of the electronic fuse circuit operation. The R4 and the light emitting diode VD3 constitute an electronic fuse circuit operation indicating circuit. SB is the reset button 8. After the power supply load fault or the line short circuit fault is eliminated, normal power supply can be recovered only by pressing the reset button 8.
In one embodiment, as shown in fig. 3, the execution device 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 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 operate, and the first motor 12 drives the switch 9 of the ac contactor 7 to rotate through the rotating shaft 10, so as to open and close the ac contactor 7.
In one embodiment, the reset button 8 includes: 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 in 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;
the reset rod 19 is arranged in the reset rod accommodating cavity 18 in the box body 1; a rack is arranged on the lower end face of the reset rod 19 and 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 located at the communication position of one end of the reset rod accommodating cavity 18 and the button accommodating groove 15, and the height of the arc-shaped groove 17 is greater than that of the communication position of one end of the reset rod accommodating cavity 18 and the button accommodating groove 15.
The working principle and the beneficial effects of the technical scheme are as follows:
In order to reduce the friction between the reset rod 19 and the arc-shaped groove 17, the service life of the reset rod 19 is prolonged. In one embodiment, the reset lever 19 is disposed in an arc shape near one end of the arc groove 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:
a second transmission gear 13 and a third transmission gear 20 are coaxially arranged at the output end of the motor; and simultaneously drives the alternating current contactor 7 and the reset button 8 to act. When the same motor is adopted for driving, the position of a switch 9 of the alternating current contactor 7, the position of a 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 one step before the circuit is completed.
In one embodiment, as shown in fig. 6 and 7, the wireless control system for the safety device further comprises:
a fuse holder 22 for setting a fuse 23; a first toothed guide rail 24 is arranged on the lower end surface of the fuse holder 22;
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 an I-shaped, and the lower end surface of the fuse holder 22 is provided with a sliding groove matched with the first slide rails 26;
the first toothed rail 24 is disposed 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 the dual protection of the electrical appliance, the fuse 23 is further arranged in the safety device 41 of the present invention, and the fuse 23 is connected into the circuit of the electrical appliance, so as to provide a second dual guarantee for the electrical safety of the electrical appliance. The controller 4 controls the third motor 27 to move, so that the fuse holder 22 moves on the first slide rail 26, and the fuse 23 is connected to the electric appliance circuit. In order to realize the access of the fuse 23, two sides of the fuse holder 22 in the direction perpendicular to the moving direction are respectively provided with an access body 29, and the access bodies 29 are connected with the electric circuit of the electric appliance.
In one embodiment, as shown in fig. 7, two fuses 23 are disposed in parallel on the upper surface of the fuse holder 22.
The working principle and the beneficial effects of the technical scheme are as follows:
there is also a backup on the fuse holder 22 when one of the fuses 23 on the fuse holder 22 burns out. The fuse 23 is burned by accident, for example: when the high-power electric appliance is connected and burnt, a user only needs to send a command for replacing the fuse 23 to the controller 4 through the control terminal 6; the controller 4 controls the third motor 27 to move, so that the fuse holder 22 moves on the first slide rail 26, and the standby fuse 23 is connected to the electric 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 disposed on the motor base; the second transmission gear, the third transmission gear and the fourth transmission gear are the same transmission gear;
a second toothed guide rail 31 is arranged on the lower end face of the motor base; two parallel second sliding rails 30 are arranged in the box body 1, the section of each second sliding rail 30 is in an I shape, and a sliding groove matched with each second sliding rail 30 is formed in the lower end face 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, and the fifth transmission gear 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 respectively and sequentially meshed with the rack, the first slide rail 26 and the first transmission gear 11;
when the controller 4 receives a control instruction of the control terminal 6, the controller 4 controls the fourth motor 33 to act, a gear at the output end of the motor on the motor base is meshed with the rack meshed with the first toothed guide rail 24, and the motor on the motor base is controlled to act to connect the fuse 23 into the circuit; then the controller 4 controls the fourth motor 33 to act to engage the 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 to push the switch of the alternating current contactor 7 upwards;
when the controller 4 receives a control instruction of the control terminal 6, that is, the controller 4 is closed, the controller 4 controls the fourth motor 33 to act to engage 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 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 base is meshed with the rack to mesh with the first toothed guide rail 24, and the motor on the motor base is controlled to act to move the fuse 23 out of the circuit;
when the power supply load fault or the line short circuit fault is eliminated and the controller 4 receives a control instruction of the control terminal 6 and is reset to be started, the controller 4 controls the fourth motor 33 to act, a gear and a rack at the output end of the motor on the motor base are meshed with the first toothed guide rail 24, and the motor on the motor base is controlled to act to connect the fuse 23 to the 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 upwards.
The working principle and the beneficial effects of the technical scheme are as follows:
one motor drives the other motor to move upwards on the motor shaft, so that a transmission gear arranged at the output end of the other motor is respectively meshed with the rack, the first transmission gear 11 and the first toothed guide rail 24 at different positions; the three functions of connecting in or out the fuse 23, pressing the reset button 8 and pushing or pulling down the switch of the alternating current contactor 7 can be realized by using two motors; wherein, after the motor acts to press the reset button 8, the motor is required to rotate reversely, and the reset rod 19 is retracted to the original position.
When the fuse protector is normally used, a user sends a control instruction (starting) by using the control terminal 6, namely when the controller 4 receives the control instruction of the control terminal 6 that the control terminal is started, the controller 4 controls the fourth motor 33 to act, a gear and a rack at the output end of the motor on the motor base are meshed with the 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 to engage the 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 to push the switch of the alternating current contactor 7 upwards; thus, the power supply circuit is conducted, and the remote starting operation is completed.
When the device is normally used, a user sends a control instruction (closing) by using the control terminal 6, namely when the controller 4 receives the control instruction of closing of the control terminal 6, the controller 4 controls the fourth motor 33 to act to engage 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 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 base is meshed with the rack to mesh with the first toothed guide rail 24, and the motor on the motor base 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 cleared, the user does not need to return to the setting position of the safety device 41, the user can directly adopt the control terminal 6 to send a control instruction (reset opening), namely when the control instruction of the control terminal 6 is received by the controller 4 after the power supply load fault or the line short-circuit fault is cleared, the controller 4 controls the fourth motor 33 to act, the gear and the rack at the output end of the motor on the motor base are meshed with the first toothed guide rail 24, and the motor on the motor base is controlled to act to connect the fuse 23 into the power supply; then, a gear at the output end of a motor on the motor base is meshed with a rack of the reset rod 19 to control the motor on the motor base to act and 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 upwards.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A wireless control system for a safety device, comprising:
a plurality of wirelessly controllable safeties;
the control terminals are respectively in wireless connection with the safety devices;
the control terminal controls the on, off or reset of the safety device, so that the on and off of a circuit accessed by the safety device are controlled.
2. The wireless safe control system of claim 1, further comprising:
the control platform is respectively in wireless connection with the safety device;
the control platform numbers the safes connected to the platform and stores the safes mounting positions corresponding to the numbers.
3. The wireless safe control system of claim 2, further comprising:
the voltage and current monitoring devices are connected with the safety devices in a one-to-one correspondence mode and are used for monitoring the current and the voltage of the safety devices; and the voltage and current monitoring devices are in communication connection with the control platform.
4. The wireless safe control system of claim 3, further comprising:
the cameras are arranged right in front of the safety device in a one-to-one correspondence mode and used for shooting images of the front face of the safety device; the cameras are in communication connection with the control platform;
the control platform analyzes the image of the front side of the safety device to determine the state of the safety device;
and when the state of the safety device is abnormal, outputting the installation position of the safety device and an abnormal picture to a mobile phone of a maintenance worker.
5. The wireless control system of claim 4, wherein the control platform is further configured to develop a maintenance plan and send the maintenance plan to a cell phone of a service person, and specifically comprises:
acquiring the installation time and the production time of each safety device;
calculating the service life according to the installation time and the production time;
screening each safety device at preset time to obtain the safety devices reaching the service life and installation positions thereof;
preparing a maintenance route according to the installation position, and preparing maintenance time according to preset maintenance time;
and formulating the maintenance plan based on the maintenance route and the maintenance time.
6. The wireless safe 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 installation time to production time to a loss time based on the conversion ratio
And acquiring a preset service life, and adding a 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 wireless safe control system of claim 5, wherein the routing a service route based on the 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 position of the safety device reaching the service life on a map, and drawing a circle by taking the installation position farthest away as an upper point of the circle;
dividing the circle center of the circle into two first areas by taking a straight line according to the principle that the number of the installation positions is equal; then dividing the two first areas into four second areas according to the principle that the circle centers respectively make a straight line and 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 are respectively taken as a straight line and the number of the installation positions is equal;
a service route is designated within each of the third zones, the service route passing through all of the installation locations within the third zone.
8. The wireless safe control system of claim 4, wherein the control platform analyzes the safe frontal image to determine the safe status; the method comprises the following steps:
acquiring prestored front images of the safety device which normally works and the safety device which normally closes;
comparing the front image of the safety device acquired by the camera with the pre-stored front image of the safety device working normally and the pre-stored front image of the safety device closed normally respectively;
when the image is the same as the pre-stored front image of the safety device which normally works, determining that the safety device normally works;
when the image 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 safety device is different from the safety device, extracting an abnormal area in the image of the front face of the safety device acquired by the camera, and determining the abnormal information of the safety device according to the position of the abnormal area in the safety device.
9. The wireless safe control system of claim 1, wherein the wirelessly controllable safe comprises:
a box body;
the alternating current electronic safety circuit is arranged in the box body and is used for accessing the power supply end of an electric appliance;
the execution device is arranged in the box body and used for controlling the on, off or reset of the alternating current electronic safety circuit;
the controller is arranged in the box body, is electrically connected with the executing device and is used for controlling the action of the executing device;
and the wireless communication module is arranged in the box body and is respectively connected with the controller and the control terminal.
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| CN201911143232.1A CN110855276B (en) | 2019-11-20 | 2019-11-20 | Wireless control system of safety device |
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| CN201911143232.1A CN110855276B (en) | 2019-11-20 | 2019-11-20 | Wireless control system of safety device |
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| CN110855276B (en) | 2023-09-29 |
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