CN114233110A - Locking device for intelligent well lid - Google Patents
Locking device for intelligent well lid Download PDFInfo
- Publication number
- CN114233110A CN114233110A CN202111476036.3A CN202111476036A CN114233110A CN 114233110 A CN114233110 A CN 114233110A CN 202111476036 A CN202111476036 A CN 202111476036A CN 114233110 A CN114233110 A CN 114233110A
- Authority
- CN
- China
- Prior art keywords
- unit
- wireless
- radio frequency
- electrically connected
- frequency unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1427—Locking devices
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00571—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0057—Feeding
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0057—Feeding
- E05B2047/0058—Feeding by batteries
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0057—Feeding
- E05B2047/0063—Energy transfer from key to lock, e.g. for emergency opening
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Near-Field Transmission Systems (AREA)
- Lock And Its Accessories (AREA)
Abstract
The application relates to a locking device for an intelligent well lid, which comprises an execution module and a control module; the execution module comprises a lockset, an execution unit and a first wireless unit, and the first wireless unit is connected with a first radio frequency unit; the control module comprises a control unit and a second wireless unit, wherein the control unit is electrically connected with a control power supply, and a coil of the second wireless unit is connected with a second radio frequency unit; the control unit modulates a transmitting signal to be transmitted by the second radio frequency unit into a charging signal for charging the second wireless unit by the first wireless unit, generates a wireless signal and then transmits the wireless signal to the first wireless unit; after receiving the wireless signal, the first wireless unit supplies the received electric energy to the lock, the execution unit and the first radio frequency unit, the first radio frequency unit demodulates a transmitting signal from the wireless signal, and the first radio frequency unit returns a response signal by changing the receiving power of the first wireless unit; this application has the power at the tool to lock and takes place to damage or unexpected when losing the electricity, lets the effect that the tool to lock can normally work.
Description
Technical Field
The application relates to the field of inspection well covers, in particular to a locking device for an intelligent well cover.
Background
In urban construction, functional pipelines are needed, every other section of the functional pipelines needs to be provided with an outlet which leads to the ground, the section from the pipeline to the ground is called a manhole, a manhole opening is usually flush with the ground, and a manhole cover is arranged at the manhole opening. The manhole cover is usually made of reinforced cement, metal, reinforced plastic and other materials, and is generally round.
The existing inspection well cover is additionally provided with some additional functions on the basis of the original cement well cover, for example, an active electronic lock is added to prevent burglary, and the existing inspection well cover is additionally provided with wireless transmission and positioning functions to facilitate the management work of related departments on the inspection well cover.
When the inspection well cover of the active electronic lock is actually used, a worker controls the active electronic lock through the control key, but when an external power supply of the active electronic lock is damaged or power is lost accidentally, the worker cannot enable the active electronic lock to work, and the inspection well cover is difficult to open.
Disclosure of Invention
In order to take place to damage or when unexpected the losing power at active electronic lock's power, let active electronic lock can normally work, this application provides a locking device for intelligence well lid.
The application provides a locking device for intelligent well lid adopts following technical scheme:
a locking device for an intelligent well lid comprises an execution module and a control module which are matched with each other;
the execution module comprises a lock fixedly connected to the well cover and externally connected with a power supply, an execution unit used for controlling the lock and detecting the working state of the external power supply, and a first wireless unit used for receiving external electric energy, wherein a coil of the first wireless unit is electrically connected with a first radio frequency unit;
the control module comprises a control unit electrically connected with a control power supply and a second wireless unit used for being in wireless electrical connection with the first wireless unit, and a coil of the second wireless unit is electrically connected with a second radio frequency unit;
the control unit modulates a transmitting signal to be transmitted by the second radio frequency unit into a charging signal for charging the second wireless unit by the first wireless unit and generates a wireless signal, and the second wireless unit sends the wireless signal to the first wireless unit;
after the first wireless unit receives the wireless signal, the first wireless unit supplies the received electric energy to the lock, the execution unit and the first radio frequency unit, the first radio frequency unit demodulates the transmitting signal from the wireless signal, and after the wireless signal is transmitted, the first radio frequency unit returns a response signal by changing the receiving power of the first wireless unit.
By adopting the technical scheme, when an external power supply electrically connected with the execution module is damaged or loses power, a worker can use the control module as a key end to supply power to the execution module in a wireless way, the second wireless unit sends electric energy to the first wireless unit, and the electric energy is supplied to the lockset, the execution unit and the first radio frequency unit, if the external power supply has no electricity so that the control key cannot communicate with the execution unit through the original communication route, the second radio frequency unit and the first radio frequency unit can carry out data communication while transmitting the electric energy, which is beneficial to ensuring that the execution module can execute the instruction of the control module, meanwhile, the first radio frequency unit can actively send data to the second radio frequency module when the execution module is electrified, and also can return a response signal by changing the receiving power when the execution module is unpowered and the first wireless unit receives the electric energy, the data is returned without affecting the supply of electrical energy.
Preferably, if the execution unit detects that the external power supply has low electric quantity, the execution unit controls the first wireless unit to use the received electric energy for charging the external power supply;
after the set time, if the execution unit detects that the electric quantity variation of the external power supply is lower than a preset variation value, when the second wireless unit stops wireless charging, the execution unit controls the first radio frequency unit to use the residual electric energy in the execution module to send preset state information to the second radio frequency unit.
By adopting the technical scheme, the electric energy received by the execution module can maintain the working state of the execution module and can also be used for charging an external power supply, so that the working personnel can realize wireless charging while using the control key. If the electric quantity of the external power supply does not change after the set time, the fault represents a circuit fault or an external power supply fault, and at the moment, the first radio frequency unit can send state information representing the fault to the second radio frequency unit during charging.
Preferably, the changing the reception power of the first radio unit to return the response signal includes:
the first radio frequency unit is electrically connected with an access switch which is electrically connected with a coil of the first wireless unit in series, the access switch is electrically connected with an access resistor, the access switch is controlled by the first radio frequency unit, the access switch is normally closed and short-circuits the access resistor, when the first radio frequency unit needs to send preset state information, the access switch is controlled to act, and the access resistor is connected to a power receiving circuit where the coil of the first wireless unit is located in series through the access switch.
By adopting the technical scheme, the first radio frequency unit changes the receiving power by controlling the number of the access resistors accessed in the coil to change the impedance, when the access resistors are accessed into the coil, the wireless transmission signal frequency is not influenced, only the wireless transmission power is influenced, and after the power received by the execution unit is shared by the access resistors, the execution unit increases the receiving power, so that the second wireless unit improves the output power within a controllable range.
Preferably, the access resistor is electrically connected in parallel with an energy storage capacitor, and when the first radio frequency unit transmits preset state information, the access switch is controlled to be switched off.
By adopting the technical scheme, when the access switch is closed, the access resistor and the energy storage capacitor do not work. When the access switch is switched off, the energy storage capacitor cannot influence the first wireless unit to receive electric energy, but can influence the received power, after the electric energy transmission is stopped, the energy storage capacitor can retain the electric energy, the first radio frequency unit controls the release of the electric energy on the energy storage capacitor through the on-off of the control coil, and the radio signal is transmitted through the coil.
Preferably, the changing the reception power of the first radio unit to return the response signal includes:
the first radio frequency unit is electrically connected with a plurality of filter capacitors which are connected in series with each other and are electrically connected with the coil of the first wireless unit in series, and each filter capacitor is electrically connected with a short-circuit switch controlled by the first radio frequency unit in parallel.
By adopting the technical scheme, the first radio frequency unit changes the receiving frequency of the wireless signals by controlling the number of the filter capacitors connected into the coil to change the capacitive reactance, so that the receiving power is changed, and the transmission quality of the radio frequency signals can be ensured by setting the capacitance value of the filter capacitors to a value which does not influence the transmission of the radio frequency signals.
Preferably, the filter capacitor is electrically connected in parallel with a dissipation resistor.
Through adopting above-mentioned technical scheme, after wireless transmission, power consumption resistor can consume the remaining electric energy of filter capacitor, and protection components and parts can also let the energy on the filter capacitor keep more of a specified duration simultaneously, do benefit to first radio frequency unit and send radio frequency signal in a certain period.
Preferably, the filter capacitor is electrically connected with a dissipation resistor in series, the dissipation resistor is electrically connected with the short-circuit switch in parallel, and the dissipation resistor is short-circuited after the short-circuit switch is closed.
By adopting the technical scheme, the short-circuit switch can change the discharge speed of the filter capacitor by changing the number of the connected energy dissipation resistors, and meanwhile, the receiving power of the execution module can also be changed.
Preferably, the coil of the first wireless unit includes a plurality of groups of sub-coils electrically connected in series, a conduction switch is electrically connected between adjacent sub-coils in series, and the working state of the conduction switch is controlled and connected to the first radio frequency unit.
By adopting the technical scheme, the transmission distance of the radio frequency signals and the sensitivity of receiving signals can be changed by changing the access number of the sub-coils, and meanwhile, the wireless charging distance and the wireless charging receiving efficiency can also be changed.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the control module sends electric energy to the first wireless unit through the second wireless unit, and the electric energy is supplied to the lockset, the execution unit and the first radio frequency unit to realize energy supply to the execution module without electricity;
2. the control module can also enable the second radio frequency unit and the first radio frequency unit to carry out data communication while transmitting electric energy, so that the execution module can execute the instruction of the control module;
3. the first radio frequency unit can actively send data to the second radio frequency module when the execution module is powered on, and can also return a response signal by changing the receiving power.
Drawings
FIG. 1 is a schematic block diagram of a first embodiment of the present application;
FIG. 2 is a schematic block diagram showing an access switch and an access resistor according to an embodiment of the present application;
FIG. 3 is a schematic block diagram of a second embodiment of the present application showing a filter capacitor connected in parallel with a dissipation resistor;
FIG. 4 is a schematic block diagram of a third embodiment of the present application showing a filter capacitor connected in series with a dissipation resistor;
fig. 5 is a schematic block diagram showing a plurality of sub-coils connected in series according to an embodiment of the present application.
Reference numerals: 10. an execution module; 11. a lock; 12. an execution unit; 13. a first wireless unit; 14. a first radio frequency unit; 141. an access switch; 142. connecting a resistor; 143. an energy storage capacitor; 144. a filter capacitor; 145. a short-circuit switch; 146. a dissipative resistor; 147. turning on the switch; 20. a control module; 21. a control unit; 22. a second wireless unit; 23. a second radio frequency unit; 30. connecting an external power supply; 40. the power supply is controlled.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The first embodiment is as follows:
the embodiment of the application discloses a locking device for intelligent well lid. Referring to fig. 1, a locking device for an intelligent manhole cover includes an execution module 10 and a control module 20 which are paired.
The lockset 11 can use a bolt lock driven by a motor and a reduction gearbox, the lockset 11 can be fixed by a bolt or welded on the lower surface of an intelligent well lid, and the bolt of the lockset 11 can be clamped with the well lid opening of an inspection well. The lock 11 is electrically connected to an external power supply 30, the external unit may be a rechargeable portable power supply with a built-in charging circuit, and the external power supply 30 may supply power to all units in the execution module 10.
The execution unit 12 can be a unit made of a control core such as an MCU or a PLC, and a driving circuit for driving the lock 11 is disposed in the execution unit 12, and the driving circuit controls the operating state of the lock 11. The execution unit 12 is further provided with a voltage acquisition circuit, which detects the operating state of the external power supply 30, and for a mobile power supply made of a lithium battery, if the voltage of the mobile power supply is smaller than the minimum operating voltage value, it represents that the mobile power supply is dead, and if the voltage of the mobile power supply cannot rise or cannot reach the minimum operating voltage value during or after continuous charging, it represents that the mobile power supply is damaged.
The first wireless unit 13 includes a coil and a wireless power transmission circuit, and an existing wireless charging module can be used. The first wireless unit 13 can receive power wirelessly and transmit power wirelessly. The power received by the first wireless unit 13 may power all units within the execution module 10. The first radio frequency unit 14 is connected to the coil of the first wireless unit 13, and shares the coil with the first wireless unit 13 to transmit or receive radio frequency signals.
As shown in fig. 2, an access switch 141 is electrically connected in series between the first rf unit 14 and the coil, and the access switch 141 can be made of a MOS transistor. The access switch 141 is electrically connected to an access resistor 142, and the access resistor 142 is electrically connected in parallel to a storage capacitor 143. The access switch 141 is controlled by the first rf unit 14, and a CPU or an MCU is integrated in the first rf unit 14. The first rf unit 14 controls the access switch 141 to be normally closed, and the access switch 141 is closed to short-circuit the access resistor 142.
Returning to fig. 1, the control module 20 includes a control unit 21 electrically connected with a control power source 40, a second wireless unit 22, and a second radio frequency unit 23. The control power supply 40 may employ a rechargeable portable power supply built into the control module 20. The control unit 21 may be a unit made of a control core such as an MCU or a PLC. The second wireless unit 22 includes a coil and a wireless charging circuit, and the second wireless unit 22 is used for providing wireless power to the first wireless unit 13 and receiving power from the first wireless unit 13. The second radio frequency unit 23 is electrically connected to a coil of the second wireless unit 22, and the second radio frequency unit 23 and the second wireless unit 22 share the coil to transmit or receive radio frequency signals.
When the control module 20 is used by a worker to cooperate with the execution module 10 to control the lock 11, if the external power supply 30 supplies power normally, the first radio frequency unit 14 and the second radio frequency unit 23 communicate according to the preset data content, the second radio unit 22 does not need to supply power to the first radio unit 13, and the execution module 10 can work normally. If the external power supply 30 cannot supply power and the first rf unit 14 cannot respond to the data content sent by the second rf unit 23, the second wireless unit 22 needs to supply power to the first wireless unit 13, so that the execution module 10 functions to operate normally, and meanwhile, the first rf unit 14 communicates with the second rf unit 23 according to the preset content.
When the external power supply 30 cannot supply power, the control unit 21 controls the second wireless unit 22 to send a charging signal to the first wireless unit 13 to transmit power, the power received by the first wireless unit 13 supplies power to the execution module 10, meanwhile, the control unit 21 modulates a transmitting signal needing to be transmitted by the second radio frequency unit 23 into the charging signal, the transmitting signal and the charging signal are modulated to generate a wireless signal, and the second wireless unit 22 sends the wireless signal to the first wireless unit 13. After the first wireless unit 13 receives the wireless signal, the first wireless unit 13 supplies the received electric energy to the lock 11, the execution unit 12 and the first radio frequency unit 14, wherein a circuit for supplying the electric energy adopts a circuit of a wireless charging scheme commonly used in the prior art, and can adopt a wireless charging scheme in an existing smart phone. When detecting that the external power supply 30 has a low power level, the execution unit 12 controls the first wireless unit 13 to use the received power to charge the external power supply 30. The first rf unit 14 demodulates the transmitted signal from the wireless signal, and before or after the transmission of the wireless signal is finished, the first rf unit 14 returns a response signal by changing the receiving power of the first wireless unit 13. In the scheme of the first rf unit 14 changing the received power of the first radio unit 13, the second radio unit 22 can measure the power supplied by itself without exceeding the maximum power supplied by the second radio unit 22, and the power supplied by the second radio unit 22 is correlated with the received power of the first radio unit 13, so that the second radio unit 22 can indirectly measure the received power of the first radio unit 13, thereby receiving the response signal from the first rf unit 14 by recording the change in the received power of the first radio unit 13.
If the execution unit 12 detects that the variation of the power of the external power supply 30 is lower than the preset variation after the set time, the external power supply 30 fails, and the execution unit 12 controls the first rf unit 14 to return a response signal representing a battery failure. For example, if the voltage of the external power supply 30 is always 2v after wireless charging for 5 minutes, it represents that the external power supply 30 is faulty. If the response signal needs to be sent after the wireless signal transmission is finished, the execution unit 12 uses the remaining power in the execution module 10 to send the preset state information to the second radio frequency unit 23, and the second radio frequency unit 23 sends the response signal representing the preset state information. After the wireless charging is finished, the circuit in the execution module 10 does not lose power immediately because of the existence of energy storage elements such as capacitance or inductance, and the execution unit 12 and the first radio frequency unit 14 can continuously work for a short time in the stored electric energy consumption process, wherein the short time can be 1 second to 3 seconds, and in the time, the power consumption of the first radio frequency unit 14 is very low, so that the response signal can be completely sent to the second radio frequency unit 23.
Referring to fig. 1 and 2, when the access switch 141 is closed, the access resistor 142 and the storage capacitor 143 are inactive. The first radio unit 14 transmits the reply signal by changing the reception power as follows: when the first radio frequency unit 14 transmits the preset state information, the access switch 141 is controlled to be turned off, and the access switch 141 connects the access resistor 142 in series to the power receiving circuit where the coil of the first radio unit 13 is located. The first rf unit 14 changes the receiving power by controlling the number of the access resistors 142 connected to the coil to change the impedance, when the access resistors 142 are connected to the coil, the signal frequency of the wireless transmission is not affected, but the power of the wireless transmission is affected, and when the power received by the execution unit 12 is shared by the access resistors 142, the execution unit 12 increases the power received by the execution unit, so that the second wireless unit 22 increases the output power within a controllable range. When the wireless charging is performed, the energy storage capacitor 143 does not affect the receiving of the electric energy by the first wireless unit 13, but affects the received power, the energy storage capacitor 143 consumes a part of the electric energy, and after the wireless charging is stopped, the electric energy is stored in the energy storage capacitor 143, and the first radio frequency unit 14 controls the release of the electric energy on the energy storage capacitor 143 by controlling the on-off of the coil, so as to transmit a radio signal through the coil.
The implementation process of the embodiment is as follows: when the staff is patrolling a plurality of intelligent well lids, use control module 20 to aim at execution module 10. If the execution module 10 is operating normally, the control module 20 can quickly obtain the response signal of the execution module 10 without wireless charging. If the external power supply 30 electrically connected to the execution module 10 is damaged or loses power, the control module 20 cannot obtain a response signal of the execution module 10 without wireless charging, and at this time, the staff may use the control module 20 as a key end to wirelessly supply power to the execution module 10. The second wireless unit 22 sends power to the first wireless unit 13, and the power received by the execution module 10 may maintain the operating state of the execution module 10 or may be used to charge the external power supply 30. While wirelessly charging, the first rf unit 14 may transmit status information representing a fault to the second rf unit 23 by sharing the wirelessly charged coil, and the first rf unit 14 returns a response signal by changing the received power without affecting the supply of electric power while returning data.
Example two:
a locking device for an intelligent well lid is shown in figure 3, and the difference from the first embodiment is that: the first radio frequency unit 14 is electrically connected with a plurality of filter capacitors 144 connected in series with each other, the filter capacitors 144 being electrically connected in series between the first radio frequency unit 14 and the coil of the first wireless unit 13. Each of the filter capacitors 144 is electrically connected in parallel with a short-circuit switch 145, the short-circuit switch 145 is controlled by the first rf unit 14, and the short-circuit switch 145 may be a MOS transistor. The filter capacitor 144 is also electrically connected in parallel with a dissipation resistor 146.
After the first rf unit 14 controls the short switch 145 to be closed, the short switch 145 will short-circuit the filter capacitor 144 and the energy consumption resistor 146, so as to maximize the efficiency of wireless charging. After the first rf unit 14 controls the short circuit switch 145 to be turned off, the filter capacitor 144 and the energy consumption resistor 146 are connected in series in the coil, so that the loss is increased, the wireless charging power is increased, and the change of the receiving power is realized. The first radio frequency unit 14 changes the reception frequency of the radio signal by changing the capacitive reactance by controlling the number of the filter capacitors 144 inserted into the coil, thereby changing the reception power, and can secure the transmission quality of the radio frequency signal by setting the capacitance value of the filter capacitors 144 to a value that does not affect the transmission of the radio frequency signal. After the wireless transmission is finished, the energy consumption resistor 146 can consume the residual electric energy of the filter capacitor 144, protect the components, and simultaneously can keep the energy on the filter capacitor 144 longer, which is beneficial for the first rf unit 14 to transmit the rf signal within a certain time.
Example three:
a locking device for an intelligent well lid is shown in figure 4, and the difference from the second embodiment is that: the dissipation resistor 146 is connected in series with the filter capacitor 144, the dissipation resistor 146 is electrically connected in parallel with the short-circuit switch 145, and the dissipation resistor 146 can be short-circuited after the short-circuit switch 145 is closed. The short circuit switch 145 can change the discharge rate of the filter capacitor 144 by changing the number of the connected dissipation resistors 146, and also can change the received power of the execution module 10.
Example four:
a locking device for an intelligent well lid is shown in figure 5, and the difference from the first embodiment is that: the coils of the first wireless unit 13 include a plurality of sets of sub-coils, the sub-coils are sequentially and electrically connected in series through a conducting switch 147, and the conducting switch 147 is controlled to be connected to the first radio frequency unit 14. When the first radio frequency unit 14 controls the on switch 147 to be closed, the adjacent sub-coils are connected in series, and when the first radio frequency unit 14 controls the on switch 147 to be opened, the adjacent sub-coils are opened, so as to change the length of the coil of the first wireless unit 13. The conducting switch 147 may be a MOS transistor. In this embodiment, the first rf unit 14 can change the power receiving length of the coil of the first wireless unit 13 by changing the number of connected sub-coils, and then change the transmission distance of the rf signal and the sensitivity of the received signal, and also change the distance and the receiving efficiency of the wireless charging, and the changed parameters may affect the receiving power of the first wireless unit 13.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a locking device for intelligence well lid which characterized in that: comprises an execution module (10) and a control module (20) which are matched;
the execution module (10) comprises a lock (11) which is fixedly connected to the well cover and is externally connected with a power supply (30), an execution unit (12) which is used for controlling the lock (11) and detecting the working state of the external power supply (30) of the lock and a first wireless unit (13) which is used for receiving external power, wherein a coil of the first wireless unit (13) is electrically connected with a first radio frequency unit (14);
the control module (20) comprises a control unit (21) electrically connected with a control power supply (40) and a second wireless unit (22) used for being in wireless electrical connection with the first wireless unit (13), and a coil of the second wireless unit (22) is electrically connected with a second radio frequency unit (23);
the control unit (21) modulates a transmission signal to be transmitted by the second radio frequency unit (23) into a charging signal for charging the second radio unit (22) by the first radio unit (13) and generates a wireless signal, and the second radio unit (22) sends the wireless signal to the first radio unit (13);
after the first wireless unit (13) receives the wireless signal, the first wireless unit (13) supplies the received electric energy to the lock (11), the execution unit (12) and the first radio frequency unit (14), the first radio frequency unit (14) demodulates the transmitted signal from the wireless signal, and after the transmission of the wireless signal is finished, the first radio frequency unit (14) returns a response signal by changing the receiving power of the first wireless unit (13).
2. The locking device for the intelligent well lid of claim 1, wherein: if the execution unit (12) detects that the external power supply (30) has low electric quantity, the execution unit controls the first wireless unit (13) to use the received electric energy for charging the external power supply (30);
after the set time, if the execution unit (12) detects that the electric quantity variation of the external power supply (30) is lower than a preset variation value, when the second wireless unit (22) stops wireless charging, the execution unit (12) controls the first radio frequency unit (14) to use the residual electric energy in the execution module (10) to send preset state information to the second radio frequency unit (23).
3. The locking device for the intelligent well lid of claim 1, wherein: said varying the received power of said first radio unit (13) to return an acknowledgement signal comprises:
the first radio frequency unit (14) is electrically connected with an access switch (141) which is electrically connected with a coil of the first radio frequency unit (13) in series, the access switch (141) is electrically connected with an access resistor (142), the access switch (141) is controlled by the first radio frequency unit (14), the access switch (141) is normally closed and short-circuits the access resistor (142), when the first radio frequency unit (14) needs to send preset state information, the access switch (141) is controlled to act, and the access switch (141) connects the access resistor (142) to a power receiving circuit where the coil of the first radio frequency unit (13) is located in series.
4. The locking device for intelligent well covers of claim 3, characterized in that: the access resistor (142) is electrically connected with an energy storage capacitor (143) in parallel, and controls the access switch (141) to be switched off when the first radio frequency unit (14) sends preset state information.
5. The locking device for the intelligent well lid of claim 1, wherein: said varying the received power of said first radio unit (13) to return an acknowledgement signal comprises:
the first radio frequency unit (14) is electrically connected with a plurality of filter capacitors (144) which are mutually connected in series and are electrically connected with the coil of the first wireless unit (13), and each filter capacitor (144) is electrically connected with a short-circuit switch (145) controlled by the first radio frequency unit (14) in parallel.
6. The locking device for intelligent well lids of claim 5, wherein: the filter capacitor (144) is electrically connected in parallel with a dissipation resistor (146).
7. The locking device for intelligent well lids of claim 5, wherein: the filtering capacitor (144) is electrically connected with a dissipation resistor (146) in series, the dissipation resistor (146) is electrically connected with the short-circuit switch (145) in parallel, and the short-circuit switch (145) is closed to short-circuit the dissipation resistor (146).
8. The locking device for the intelligent well lid of claim 1, wherein: the coil of the first wireless unit (13) comprises a plurality of groups of sub-coils which are electrically connected in series, a conducting switch (147) is electrically connected between the adjacent sub-coils in series, and the working state of the conducting switch (147) is controlled to be connected to the first radio frequency unit (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111476036.3A CN114233110B (en) | 2021-12-06 | 2021-12-06 | Locking device for intelligent well lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111476036.3A CN114233110B (en) | 2021-12-06 | 2021-12-06 | Locking device for intelligent well lid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114233110A true CN114233110A (en) | 2022-03-25 |
| CN114233110B CN114233110B (en) | 2023-04-21 |
Family
ID=80753365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111476036.3A Active CN114233110B (en) | 2021-12-06 | 2021-12-06 | Locking device for intelligent well lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114233110B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130026982A1 (en) * | 2011-07-29 | 2013-01-31 | Perry Rothenbaum | Wireless battery charging device, method and system |
| US20140141726A1 (en) * | 2012-11-20 | 2014-05-22 | Apple Inc. | Robotic Wireless Test System |
| CN204012762U (en) * | 2014-03-10 | 2014-12-10 | 陈业军 | A kind of wireless charging well lid |
| CN204391786U (en) * | 2014-12-31 | 2015-06-10 | 湖南新光井盖科技有限公司 | A kind of well lid motion state monitoring device based on wireless charging technology |
| CN104798315A (en) * | 2012-11-29 | 2015-07-22 | 皇家飞利浦有限公司 | Wireless inductive power transfer |
| CN204616103U (en) * | 2015-05-16 | 2015-09-02 | 刘青 | Radio node radio-frequency power dynamic adjustments module |
| KR20150101197A (en) * | 2014-02-26 | 2015-09-03 | 주식회사 히타치엘지 데이터 스토리지 코리아 | Method and apparatus for transmitting power wirelessly |
| CN105359373A (en) * | 2013-07-17 | 2016-02-24 | 皇家飞利浦有限公司 | Wireless inductive power transfer |
| CN105722136A (en) * | 2016-03-31 | 2016-06-29 | 宁波大学 | Low power consumption wireless local area network signal strength detection device and detection method |
| CN107546804A (en) * | 2017-09-11 | 2018-01-05 | 上海斐讯数据通信技术有限公司 | A kind of method and system of wireless charging |
| CN109184338A (en) * | 2018-08-22 | 2019-01-11 | 长园共创电力安全技术股份有限公司 | A kind of pattern manhole cover lock and well lid |
| CN110056010A (en) * | 2019-05-17 | 2019-07-26 | 南京管科智能科技有限公司 | A kind of intelligent well cover and preparation method thereof with wireless charging function |
| CN210828712U (en) * | 2019-08-27 | 2020-06-23 | 珠海市世源光电科技有限公司 | Intelligent electronic lock well lid monitoring system based on electronic key |
| CN111731139A (en) * | 2020-05-19 | 2020-10-02 | 华为技术有限公司 | Wireless charging receiving end, transmitting end, system, control method and electric automobile |
| CN212506430U (en) * | 2020-06-02 | 2021-02-09 | 烟台久环电子科技有限公司 | Wireless charging lock control device for intelligent well lid |
-
2021
- 2021-12-06 CN CN202111476036.3A patent/CN114233110B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130026982A1 (en) * | 2011-07-29 | 2013-01-31 | Perry Rothenbaum | Wireless battery charging device, method and system |
| US20140141726A1 (en) * | 2012-11-20 | 2014-05-22 | Apple Inc. | Robotic Wireless Test System |
| CN104798315A (en) * | 2012-11-29 | 2015-07-22 | 皇家飞利浦有限公司 | Wireless inductive power transfer |
| CN105359373A (en) * | 2013-07-17 | 2016-02-24 | 皇家飞利浦有限公司 | Wireless inductive power transfer |
| KR20150101197A (en) * | 2014-02-26 | 2015-09-03 | 주식회사 히타치엘지 데이터 스토리지 코리아 | Method and apparatus for transmitting power wirelessly |
| CN204012762U (en) * | 2014-03-10 | 2014-12-10 | 陈业军 | A kind of wireless charging well lid |
| CN204391786U (en) * | 2014-12-31 | 2015-06-10 | 湖南新光井盖科技有限公司 | A kind of well lid motion state monitoring device based on wireless charging technology |
| CN204616103U (en) * | 2015-05-16 | 2015-09-02 | 刘青 | Radio node radio-frequency power dynamic adjustments module |
| CN105722136A (en) * | 2016-03-31 | 2016-06-29 | 宁波大学 | Low power consumption wireless local area network signal strength detection device and detection method |
| CN107546804A (en) * | 2017-09-11 | 2018-01-05 | 上海斐讯数据通信技术有限公司 | A kind of method and system of wireless charging |
| CN109184338A (en) * | 2018-08-22 | 2019-01-11 | 长园共创电力安全技术股份有限公司 | A kind of pattern manhole cover lock and well lid |
| CN110056010A (en) * | 2019-05-17 | 2019-07-26 | 南京管科智能科技有限公司 | A kind of intelligent well cover and preparation method thereof with wireless charging function |
| CN210828712U (en) * | 2019-08-27 | 2020-06-23 | 珠海市世源光电科技有限公司 | Intelligent electronic lock well lid monitoring system based on electronic key |
| CN111731139A (en) * | 2020-05-19 | 2020-10-02 | 华为技术有限公司 | Wireless charging receiving end, transmitting end, system, control method and electric automobile |
| CN212506430U (en) * | 2020-06-02 | 2021-02-09 | 烟台久环电子科技有限公司 | Wireless charging lock control device for intelligent well lid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114233110B (en) | 2023-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106921200A (en) | A kind of electric automobile wireless charging circuit, electric automobile and charging system | |
| CN106160262A (en) | Control device, electronic equipment and non-contact power transmitting system | |
| CN108539806A (en) | Control device, power receiving device and electronic equipment | |
| CN107424368A (en) | Door and window magnetic control system | |
| CN110428524B (en) | Wireless charging energy-supply type terminal without power supply and remote encryption management system of handheld machine of wireless charging energy-supply type terminal | |
| CN206362841U (en) | Long-life intelligent electric energy meter based on super capacitor and button-shaped lithium-manganese cell | |
| CN105743167A (en) | Energy-saving control system and method for smart garbage bin | |
| CN204590730U (en) | The berth lock of a kind of available smart mobile phone and remote control device | |
| CN114233110B (en) | Locking device for intelligent well lid | |
| CN109638369A (en) | Battery pack, control panel arrangement and working method with integrated BMS control panel | |
| CN109447292A (en) | A kind of vehicle supervision device and method | |
| CN112681910A (en) | Bluetooth intelligent padlock monitoring system and method suitable for power metering box | |
| CN210742538U (en) | Low-power-consumption wireless rainfall acquisition instrument supporting Beidou positioning | |
| CN101123319B (en) | Battery cover | |
| CN106707368A (en) | Novel power supply mode power transmission line environment meteorological monitoring device | |
| CN206775232U (en) | A kind of wireless charging device suitable for intelligent access control system | |
| CN206884986U (en) | A kind of controlled in wireless key case started for vehicle remote | |
| CN204706950U (en) | Diesel engine generator electric power supply control system | |
| KR20070054519A (en) | Charging system by using radio communication for doorlock | |
| CN210459304U (en) | Low-power-consumption wireless intelligent electronic well lid | |
| CN207264476U (en) | Intelligent lock circuit and smart lock | |
| CN204178256U (en) | Power station measure and control device | |
| CN114142567A (en) | Battery management circuit and battery device | |
| CN103888271A (en) | WIA-PA wireless network adapter power supply circuit | |
| CN208093989U (en) | A kind of Internet of things type intelligent power distribution cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |