CN115367088A - Protection system for ship driver during separation of ship and passenger - Google Patents
Protection system for ship driver during separation of ship and passenger Download PDFInfo
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- 238000000926 separation method Methods 0.000 title claims description 16
- 238000005259 measurement Methods 0.000 claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims description 85
- 239000011159 matrix material Substances 0.000 claims description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000010521 absorption reaction Methods 0.000 claims description 15
- 238000010276 construction Methods 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 5
- 230000035945 sensitivity Effects 0.000 claims description 5
- 238000012795 verification Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 210000003423 ankle Anatomy 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/21—Control means for engine or transmission, specially adapted for use on marine vessels
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/21—Control means for engine or transmission, specially adapted for use on marine vessels
- B63H2021/216—Control means for engine or transmission, specially adapted for use on marine vessels using electric control means
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Abstract
The invention discloses a protection system for separating a ship driver from a ship, which comprises: the device comprises a ship power automatic control device, a signal receiving device, a ship power manual control device and a ship starting switch which are arranged on a ship; and a signal transmitting device worn on the driver; the ship power automatic control device is respectively connected with the signal receiving device, the ship starting switch and the ship power manual control device by adopting electric signals; the signal sending device sends a wireless measurement and control signal outwards, a ship power automatic control device is started, and whether a disconnection instruction is sent to the ship starting switch or not is judged based on whether the signal receiving device can receive the wireless measurement and control signal or not; after the ship power automatic control device is closed through the ship power manual control device, the control relation between the ship power automatic control device and a ship starting switch is disconnected. When the man-boat is separated, the boat stops advancing, and the driver can timely return to the boat.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a protection system for a ship driver during separation of a person and a ship.
Background
When a ship (particularly a small or medium-sized ship) sails, a captain or a driver falls into water for various reasons. If the water area is closed or the offshore area is good, the ship can swim back to the ship or ask for help. However, if the ship is far offshore, the ship still sails by the power wind and is difficult to swim back to the ship. Rescue cannot be achieved in time, and danger is generated.
Existing solutions either tie the pilot and the boat down using safety lines; or like a single motorboat, the starting key is hung on the body by a rope and is inserted into the motorboat for starting, and the key is taken away from the motorboat by a driver when the driver falls into water.
The existing solution has the defects that:
1. safety rope: by the method, a crew can be easily pulled and tripped by a rope on the ship, the action is limited, the attractiveness is influenced, and in case of falling into water, if the ship advances at a high speed, a person falling into the water can be dragged to cause danger.
2. Like a single motorboat, the starting key is hung on the motorboat by a rope, so that the power of the small boat can be stopped when the motorboat is separated, but the position of a person is completely fixed, the motorboat which is not seated can use the method, but small ships and yachts cannot enable a driver to stay at a driving position for no action at all times.
Therefore, there is a need for a solution that can both secure a person and not impede the range of movement of the person.
Disclosure of Invention
The invention provides a protection system for a ship driver during separation of a person and a ship, which aims to solve the problems in the prior art.
The invention provides a protection system for a ship driver during separation of a person and a ship, which comprises:
the device comprises a ship power automatic control device, a signal receiving device, a ship power manual control device and a ship starting switch which are arranged on a ship; and a signal transmitting device worn on the driver;
the ship power automatic control device is respectively connected with the signal receiving device, the ship starting switch and the ship power manual control device by adopting electric signals;
the signal sending device sends a wireless measurement and control signal outwards, a ship power automatic control device is started, and whether a disconnection instruction is sent to the ship starting switch or not is judged based on whether the signal receiving device can receive the wireless measurement and control signal or not; after the ship power automatic control device is closed through the ship power manual control device, the control relation between the ship power automatic control device and a ship starting switch is disconnected.
Preferably, the ship power automatic control device is started through the ship power manual control device, and the ship power automatic control device controls the ship starting switch to be opened or closed through a control signal; when the signal receiving device receives the wireless measurement and control signal, the automatic ship power control device does not act, and the ship continues to run; when the signal receiving device can not receive the wireless measurement and control signal or the received signal and the wireless measurement and control signal are not matched, the ship power automatic control device sends a disconnection instruction to the ship starting switch, the ship starting switch disconnects the operation of the ship power system according to the disconnection instruction, and the ship stops running.
Preferably, the ship power manual control device further comprises an encryption module, and the encryption module is connected with the ship power manual control device; determining whether the ship power manual control device is in a normal working state or not based on the verification function of the encryption module;
when the ship power manual control device is started or closed, a user inputs a password or a fingerprint through the encryption module, when the encryption module judges that the input password or the fingerprint is consistent with a pre-stored password or fingerprint, the encryption module sends an authenticated instruction to a switch button control system of the ship power manual control device, the ship power manual control device is in a normal working state, in the normal working state, the switch button control system controls a starting button and a closing button to be in a usable state, the ship power automatic control device is started through the starting button, and the ship power automatic control device is closed through the closing button; if the input password or the fingerprint is not consistent with the pre-stored password or the fingerprint, the encryption module sends an unauthenticated instruction to a switch button control system of the ship power manual control device, the ship power manual control device is in a non-working state, the switch button control system controls an opening button and a closing button to be in a non-working state, and the opening button and the closing button cannot normally open or close the ship power automatic control device.
Preferably, the wireless measurement and control signal sent by the signal sending device covers a preset range, and the preset range is a circle formed by taking the signal sending device as a circle center and taking a preset distance as a radius;
the control and setting of the preset distance are determined based on the transmission power of the signal transmitting device, the transmission antenna gain, the sensitivity of the signal receiving device, the receiving antenna gain, the path loss, and the weather environment factor.
Preferably, when the signal receiving device can receive the wireless measurement and control signal sent by the signal sending device, a specific signal is sent to the signal receiving device through the signal sending device;
the signal sending device is integrated in the wearable equipment, the control part of the signal sending device controls the signal sending device to send a wireless wave signal with a specific shape, after the wireless wave signal is transmitted to the signal receiving device on the ship, the signal receiving device receives the wireless wave signal and transmits the wireless wave signal to the automatic ship power control device, the automatic ship power control device compares the wireless wave signal with a pre-stored waveform, and if the wireless wave signal is matched with the pre-stored waveform, the automatic ship power control device starts a ship starting switch through a starting instruction to enable the ship to continue sailing; or the ship starting switch is turned off through the turn-off instruction, the ship starting switch cuts off the operation of the ship power system according to the turn-off instruction, and the ship stops running.
Preferably, the disconnecting vessel power system is a disconnecting vessel power system based on different power sources of the vessel, the disconnecting vessel power system comprising: stopping the rotation of the engine of the ship and lowering the sail.
Preferably, the system also comprises a ship control system and an alarm system, wherein the ship control system is electrically connected with the alarm system; the ship control system is electrically connected with the signal receiving device;
when signal receiving arrangement can receive the wireless observing and controlling signal that signal sending device sent, the navigating mate passes through signal sending arrangement sends alarm signal to signal receiving arrangement, signal receiving arrangement sends alarm signal for ship control system, ship control system compares alarm signal with the signal of prestoring, judges the affiliated grade of alarm signal, according to the alarm grade difference, to alarm system sends different alarm response, alarm system is different according to the warning buzzing frequency and the buzzing volume that different alarm grades produced.
Preferably, when the signal receiving device can receive the signal sent by the signal sending device, but the signal received through matching is not completely matched with the sent signal, the signal received by the signal receiving device is compared with the wireless measurement and control signal, and the frequency amplitude of the received signal is compared with a threshold range, where the threshold range includes: a minimum threshold and a maximum threshold; if the frequency amplitude of the received signal is larger than the maximum threshold value and smaller than a standard value, the automatic ship power control device controls one power unit of the ship power system to stop running; if the frequency amplitude of the received signal is larger than the minimum threshold value and smaller than the maximum threshold value, the ship power automatic control device controls a ship power system to run at a reduced speed; and if the frequency amplitude of the received signal is smaller than the minimum threshold value, the automatic ship power control device controls the ship power system to stop running.
Preferably, a path loss model is further included; determining a path loss based on the path loss model;
the construction mode of the path loss model comprises the following steps: constructing space loss based on free space loss, constructing reflection loss based on water surface reflection loss, constructing diffraction loss based on water surface diffraction loss, and constructing atmospheric absorption loss based on water surface atmospheric absorption loss; the space loss, the reflection loss, the diffraction loss and the atmospheric absorption loss are combined to construct total loss;
determining a path loss based on a total loss in the path loss model.
Wherein, the calculation formula of the total loss is as follows:
wherein F is total loss, F is wireless signal working frequency, d is distance between receiving antenna and transmitting antenna, and H C For clearance of obstacles, F 1 Is the first Fresnel radius, γ a Is the loss rate of atmospheric oxygen molecules, gamma b Is the loss rate of water vapor molecules in the atmosphere, and R is an effective reflection coefficient, h' 1 Is the receive antenna height, h' 2 In order to transmit the antenna height,
is the wireless signal wavelength; alpha is a first empirical constant and takes a value of between 40 and 50, and beta is a second empirical coefficient and takes a value of 20.
The loss on the water surface can be accurately calculated based on the calculation mode of the total loss, the wireless signal transmission distance is further determined based on the total loss, the safety distance between a driver and a cockpit is adjusted based on the wireless signal transmission distance, and if the safety distance is exceeded, the power system of the ship is automatically stopped through the ship power automatic control device, so that the safety of the driver is guaranteed to return to the cockpit.
Preferably, the system also comprises signal acquisition equipment, a transmitting antenna array, a receiving antenna array, a transmission matrix acquisition device and a control computer; the transmitting antenna array is connected to the signal acquisition equipment, the receiving antenna array is placed in the front of the transmitting antenna array or in the vicinity of the front of the transmitting antenna array, the transmitting antenna array and the receiving antenna array adopt the same antenna array, and antenna units in the transmitting antenna array and the receiving antenna array respectively work in a transmitting state and a receiving state; the control computer is connected with the receiving antenna array; two ends of the transmission matrix acquisition device are respectively connected with the transmitting antenna array and the receiving antenna array;
acquiring multiple transmission signals from a signal acquisition device, transmitting data of each transmission signal in parallel by using a transmitting antenna array, transmitting the transmission signals in a short distance in a free space, and receiving the transmission signals in parallel by a receiving antenna; determining a transmission matrix between a transmitting end antenna array and a receiving end antenna array by using a transmission matrix acquisition device according to the distance between the transmitting antenna array and the receiving antenna array, the distance between each antenna unit of the transmitting antenna array and each antenna unit of the receiving antenna array, the number of data streams and a signal frequency band, and sending the transmission matrix to a control computer;
the control computer calculates the condition number of the transmission matrix, and adjusts the distance between the transmitting antenna array and the receiving antenna array, the distance between each antenna unit of the transmitting antenna array and each antenna unit of the receiving antenna array, the number of data streams and the signal frequency band until the condition number of the set transmission matrix is obtained; and then the computer inverts the matrix of the obtained transmission matrix, loads the inverted matrix on the received signal, restores the original transmission signal by adjusting the amplitude and the phase of the received signal, and determines the transmission distance of the wireless signal based on the short-distance parallel wireless transmission of the matrix inversion.
Compared with the prior art, the invention has the following advantages:
the invention provides a protection system for a ship driver during separation of a person and a ship, which comprises: the ship power automatic control device, the signal receiving device, the ship power manual control device and the ship starting switch are arranged on the ship; and a signal transmitting device worn on the driver; the ship power automatic control device is respectively connected with the signal receiving device, the ship starting switch and the ship power manual control device by adopting electric signals; the signal sending device sends a wireless measurement and control signal outwards, a ship power automatic control device is started, and whether a disconnection instruction is sent to the ship starting switch or not is judged based on whether the signal receiving device can receive the wireless measurement and control signal or not; after the ship power manual control device is closed, the control relation between the ship power automatic control device and a ship starting switch is disconnected. Therefore, by arranging the device in the embodiment, the ship driver stops the ship from traveling under the condition that the ship driver causes the danger of separating the human and the ship through mutual coordination and influence, so that the driver has more chances to safely return to the ship. In addition, when the ship sails, the ship can be stopped when a driver accidentally breaks away from the ship for a certain distance, and the action of the driver on the ship cannot be influenced and limited. And the system does not have additional equipment such as a safety rope and the like, so that the ship is tidier and more attractive.
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 the 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. 1 is a schematic diagram of a protection system for a ship driver during separation of the ship from the driver in an embodiment of the invention;
FIG. 2 is a schematic diagram of an embodiment of a system with an encryption module;
fig. 3 is a schematic structural diagram of an alarm system in the embodiment 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.
The embodiment of the invention provides a protection system for a ship driver during separation of a person and a ship, and referring to fig. 1, the protection system comprises the following parts: the method comprises the following steps:
the ship power automatic control device, the signal receiving device, the ship power manual control device and the ship starting switch are arranged on the ship; and a signal transmitting device worn on the driver;
the ship power automatic control device is respectively connected with the signal receiving device, the ship starting switch and the ship power manual control device by adopting electric signals;
the signal sending device sends a wireless measurement and control signal outwards, a ship power automatic control device is started, and whether a disconnection instruction is sent to the ship starting switch or not is judged based on whether the signal receiving device can receive the wireless measurement and control signal or not; after the ship power automatic control device is closed through the ship power manual control device, the control relation between the ship power automatic control device and a ship starting switch is disconnected.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment comprises the following steps: the device comprises a ship power automatic control device, a signal receiving device, a ship power manual control device and a ship starting switch which are arranged on a ship; and a signal transmitting device worn on the driver; the ship power automatic control device is respectively connected with the signal receiving device, the ship starting switch and the ship power manual control device by adopting electric signals; the signal sending device sends a wireless measurement and control signal outwards, a ship power automatic control device is started, and whether a disconnection instruction is sent to the ship starting switch or not is judged based on whether the signal receiving device can receive the wireless measurement and control signal or not; after the ship power automatic control device is closed through the ship power manual control device, the control relation between the ship power automatic control device and a ship starting switch is disconnected.
The beneficial effects of the above technical scheme are: the ship power automatic control device, the signal receiving device, the ship power manual control device and the ship starting switch which are arranged on the ship by adopting the scheme provided by the embodiment; and a signal transmitting device worn on the driver; the ship power automatic control device is respectively connected with the signal receiving device, the ship starting switch and the ship power manual control device by adopting electric signals; the signal sending device sends a wireless measurement and control signal outwards, a ship power automatic control device is started, and whether a disconnection instruction is sent to the ship starting switch or not is judged based on whether the signal receiving device can receive the wireless measurement and control signal or not; after the ship power manual control device is closed, the control relation between the ship power automatic control device and a ship starting switch is disconnected.
Therefore, by arranging the device in the embodiment, the ship driver stops the ship from traveling under the condition that the ship driver causes the danger of separating the human and the ship through mutual coordination and influence, so that the driver has more chances to safely return to the ship. In addition, when the ship sails, the ship can be stopped when a driver accidentally breaks away from the ship for a certain distance, and the action of the driver on the ship cannot be influenced and limited. And the ship is tidier and more beautiful.
In another embodiment, the ship power automatic control device is started through the ship power manual control device, and the ship power automatic control device controls the opening or closing of the ship starting switch through a control signal; when the signal receiving device receives the wireless measurement and control signal, the ship power automatic control device does not act, and the ship continues to run; when the signal receiving device can not receive the wireless measurement and control signal or the received signal and the wireless measurement and control signal are not matched, the ship power automatic control device sends a disconnection instruction to the ship starting switch, the ship starting switch disconnects the operation of the ship power system according to the disconnection instruction, and the ship stops running.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that the ship power automatic control device is started through the ship power manual control device, and the ship power automatic control device controls the ship starting switch to be switched on or switched off through a control signal; when the signal receiving device receives the wireless measurement and control signal, the automatic ship power control device does not act, and the ship continues to run; when the signal receiving device can not receive the wireless measurement and control signal or the received signal and the wireless measurement and control signal are not matched, the ship power automatic control device sends a disconnection instruction to the ship starting switch, the ship starting switch disconnects the operation of the ship power system according to the disconnection instruction, and the ship stops running.
The concrete description is as follows:
the method comprises the steps that a device A1 and a ship starting switch are arranged on a ship power part, the ship power automatic control device A1 is used for automatically controlling the starting or closing of the ship starting switch, and further whether the power part runs or not can be controlled (the power stopping part comprises but is not limited to stopping an engine, lowering a sail and the like, and is determined according to the power source of a ship), and a device A2 is arranged on the device A1 and used for receiving a matched real-time signal; the device A3 is arranged on the device A1 and used for manually disabling the function of the device A1 for controlling the power running of the ship, and whether the manual control device A3 for the power of the ship is started or not can improve the operation safety by adding an encryption unlocking authority function; means B are provided for transmitting a continuous real-time signal. A1 is a ship power automatic control device, A2 is a signal receiving device, and B is a signal sending device. A3 is a manual control device for the power of the ship.
First, the device B is worn on the body of the driver, such as the wrist, ankle and the like. The matching device A2 receives the signal sent by the device B and presets a distance range. And if the continuous signal sent by the device B is within the preset distance range, the power system of the ship continuously and normally operates. If the distance between the signal sent by the device B and the device A2 exceeds the preset distance range or the signal is not received, the device A2 gives an instruction to the device A1, and the device A1 stops the power part of the ship from running through a ship starting switch. After stopping, the driver needs to return to the ship, manually input a password into the A3 device or cancel the command of the A1 power system suspension by using a fingerprint or the like to continue driving.
If the device A1 system is not needed, the device A3 can be used for releasing the function of controlling the ship power running of the device A1, and the password authority function can be added, so that the device A1 does not influence the ship starting switch after release, and further does not influence a ship power device.
In addition, a function of directly transmitting signals can be arranged on the device B, the signals can be directly transmitted to the device A2 to further influence the device A1, and then the ship power is actively and manually stopped to run through the ship starting switch.
The beneficial effects of the above technical scheme are: the ship power automatic control device is started through the ship power manual control device by adopting the scheme provided by the embodiment, and the ship power automatic control device controls the ship starting switch to be switched on or switched off through a control signal; when the signal receiving device receives the wireless measurement and control signal, the automatic ship power control device does not act, and the ship continues to run; when the signal receiving device can not receive the wireless measurement and control signal or the received signal and the wireless measurement and control signal are not matched, the ship power automatic control device sends a disconnection instruction to the ship starting switch, the ship starting switch disconnects the operation of the ship power system according to the disconnection instruction, and the ship stops running.
Therefore, the advantages of this embodiment are as follows: extra safety rope can not increase on the ship, and the ship space is originally narrow and small, makes narrow and small shipboard space reduce the constraint under the prerequisite of guaranteeing safety, possesses more convenient action environment. Has no redundant rope and is beautiful. The safety rope is matched to be used together under the condition of severe weather, and the danger caused by dragging of a ship which runs at high speed after a crew falls into water is avoided. The driver is not restricted to the front of the driver's seat. When the driver temporarily leaves the ship, the ship is prevented from being started by misoperation of personnel on the ship, and the ship is prevented from being far away from the driver.
In another embodiment, the system further comprises an encryption module, wherein the encryption module is connected with the ship power manual control device; determining whether the ship power manual control device is in a normal working state or not based on the verification function of the encryption module;
when the ship power manual control device is started or closed, a user inputs a password or a fingerprint through the encryption module, when the encryption module judges that the input password or the fingerprint is consistent with a pre-stored password or fingerprint, the encryption module sends an authenticated instruction to a switch button control system of the ship power manual control device, the ship power manual control device is in a normal working state, the switch button control system controls a starting button and a closing button to be in a usable state under the normal working state, the ship power automatic control device is started through the starting button, and the ship power automatic control device is closed through the closing button; if the input password or the fingerprint is not consistent with the pre-stored password or the fingerprint, the encryption module sends an unauthenticated instruction to a switch button control system of the ship power manual control device, the ship power manual control device is in a non-working state, the switch button control system controls an opening button and a closing button to be in a non-working state, and the opening button and the closing button cannot normally open or close the ship power automatic control device.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment also comprises an encryption module, wherein the encryption module is connected with the manual ship power control device; determining whether the ship power manual control device is in a normal working state based on the verification function of the encryption module; when the ship power manual control device is started or closed, a user inputs a password or a fingerprint through the encryption module, when the encryption module judges that the input password or the fingerprint is consistent with a pre-stored password or fingerprint, the encryption module sends an authenticated instruction to a switch button control system of the ship power manual control device, the ship power manual control device is in a normal working state, in the normal working state, the switch button control system controls a starting button and a closing button to be in a usable state, the ship power automatic control device is started through the starting button, and the ship power automatic control device is closed through the closing button; if the input password or the fingerprint is inconsistent with the pre-stored password or the fingerprint, the encryption module sends an unauthenticated instruction to a switch button control system of the ship power manual control device, the ship power manual control device is in a non-working state, in the non-working state, the switch button control system controls an opening button and a closing button to be in an unavailable state, and the opening button and the closing button cannot normally open or close the ship power automatic control device.
The beneficial effects of the above technical scheme are: the scheme provided by the embodiment also comprises an encryption module, wherein the encryption module is connected with the ship power manual control device; determining whether the ship power manual control device is in a normal working state or not based on the verification function of the encryption module;
when the ship power manual control device is started or closed, a user inputs a password or a fingerprint through the encryption module, when the encryption module judges that the input password or the fingerprint is consistent with a pre-stored password or fingerprint, the encryption module sends an authenticated instruction to a switch button control system of the ship power manual control device, the ship power manual control device is in a normal working state, in the normal working state, the switch button control system controls a starting button and a closing button to be in a usable state, the ship power automatic control device is started through the starting button, and the ship power automatic control device is closed through the closing button; if the input password or the fingerprint is inconsistent with the pre-stored password or the fingerprint, the encryption module sends an unauthenticated instruction to a switch button control system of the ship power manual control device, the ship power manual control device is in a non-working state, in the non-working state, the switch button control system controls an opening button and a closing button to be in an unavailable state, and the opening button and the closing button cannot normally open or close the ship power automatic control device. The safety of operation is improved through the encryption module, and the automatic ship power control device cannot be started or closed randomly by a non-driver.
In another embodiment, the wireless measurement and control signal sent by the signal sending device covers a preset range, and the preset range is a circle formed by taking the signal sending device as a circle center and taking a preset distance as a radius;
the control and setting of the preset distance are determined based on the transmission power of the signal transmission device, the transmission antenna gain, the sensitivity of the signal reception device, the reception antenna gain, the path loss, and weather environmental factors.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that the wireless measurement and control signal sent by the signal sending device covers a preset range, wherein the preset range is a circle formed by taking the signal sending device as a circle center and taking a preset distance as a radius;
the control and setting of the preset distance are determined based on the transmission power of the signal transmitting device, the transmission antenna gain, the sensitivity of the signal receiving device, the receiving antenna gain, the path loss, and the weather environment factor.
The beneficial effects of the above technical scheme are: according to the scheme provided by the embodiment, the wireless measurement and control signal sent by the signal sending device covers a preset range, wherein the preset range is a circle formed by taking the signal sending device as a circle center and taking a preset distance as a radius;
the control and setting of the preset distance are determined based on the transmission power of the signal transmitting device, the transmission antenna gain, the sensitivity of the signal receiving device, the receiving antenna gain, the path loss, and the weather environment factor. The signal transmission distance is controllable.
In another embodiment, when the signal receiving device can receive the wireless measurement and control signal sent by the signal sending device, a specific signal is sent to the signal receiving device through the signal sending device;
the signal sending device is integrated in the wearable equipment, the control part of the signal sending device controls the signal sending device to send a wireless wave signal with a specific shape, after the wireless wave signal is transmitted to the signal receiving device on the ship, the signal receiving device receives the wireless wave signal and transmits the wireless wave signal to the automatic ship power control device, the automatic ship power control device compares the wireless wave signal with a pre-stored waveform, and if the wireless wave signal is matched with the pre-stored waveform, the automatic ship power control device starts a ship starting switch through a starting instruction to enable the ship to continue sailing; or the ship starting switch is turned off through the turn-off instruction, the ship starting switch cuts off the operation of the ship power system according to the turn-off instruction, and the ship stops running.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that when the signal receiving device can receive the wireless measurement and control signal sent by the signal sending device, a specific signal is sent to the signal receiving device through the signal sending device;
the signal sending device is integrated in the wearable equipment, the control part of the signal sending device controls the signal sending device to send a wireless wave signal with a specific shape, after the wireless wave signal is transmitted to the signal receiving device on the ship, the signal receiving device receives the wireless wave signal and transmits the wireless wave signal to the automatic ship power control device, the automatic ship power control device compares the wireless wave signal with a pre-stored waveform, and if the wireless wave signal is matched with the pre-stored waveform, the automatic ship power control device starts a ship starting switch through a starting instruction to enable the ship to continue sailing; or the ship starting switch is turned off through the turn-off instruction, the ship starting switch cuts off the operation of the ship power system according to the turn-off instruction, and the ship stops running.
The beneficial effects of the above technical scheme are: when the scheme provided by the embodiment is adopted, when the signal receiving device can receive the wireless measurement and control signal sent by the signal sending device, the signal sending device sends a specific signal to the signal receiving device;
the signal sending device is integrated in the wearable equipment, the control part of the signal sending device controls the signal sending device to send a wireless wave signal with a specific shape, after the wireless wave signal is transmitted to the signal receiving device on the ship, the signal receiving device receives the wireless wave signal and transmits the wireless wave signal to the automatic ship power control device, the automatic ship power control device compares the wireless wave signal with a pre-stored waveform, and if the wireless wave signal is matched with the pre-stored waveform, the automatic ship power control device starts a ship starting switch through a starting instruction to enable the ship to continue sailing; or the ship starting switch is turned off through the turn-off instruction, the ship starting switch cuts off the operation of the ship power system according to the turn-off instruction, and the ship stops running.
In another embodiment, the disconnecting vessel power system is a disconnecting vessel power system based on different power sources of the vessel, the disconnecting vessel power system comprising: stopping the rotation of the engine of the ship and lowering the sail.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that the power system of the cut-off ship cuts off the power system of the ship according to different power sources of the ship, and the power system of the cut-off ship comprises: stopping the rotation of the engine of the ship and lowering the sail.
The beneficial effects of the above technical scheme are: according to the scheme provided by the embodiment, the power system for disconnecting the ship cuts off the power system of the ship according to different power sources of the ship, and the power system for cutting off the ship comprises: stopping the rotation of the engine of the ship and lowering the sail.
In another embodiment, the system further comprises a ship control system and an alarm system, wherein the ship control system is electrically connected with the alarm system; the ship control system is electrically connected with the signal receiving device;
when signal receiving arrangement can receive the wireless observing and controlling signal that signal sending device sent, the navigating mate passes through signal sending arrangement sends alarm signal to signal receiving arrangement, signal receiving arrangement sends alarm signal for ship control system, ship control system compares alarm signal with the signal of prestoring, judges the affiliated grade of alarm signal, according to the alarm grade difference, to alarm system sends different warning response, alarm system is different according to the warning buzzing frequency and the buzzing volume that different alarm grade produced.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment also comprises a ship control system and an alarm system, wherein the ship control system is electrically connected with the alarm system; the ship control system is electrically connected with the signal receiving device;
when signal receiving arrangement can receive the wireless observing and controlling signal that signal sending device sent, the navigating mate passes through signal sending arrangement sends alarm signal to signal receiving arrangement, signal receiving arrangement sends alarm signal for ship control system, ship control system compares alarm signal with the signal of prestoring, judges the affiliated grade of alarm signal, according to the alarm grade difference, to alarm system sends different warning response, alarm system is different according to the warning buzzing frequency and the buzzing volume that different alarm grade produced.
The beneficial effects of the above technical scheme are: the scheme provided by the embodiment also comprises a ship control system and an alarm system, wherein the ship control system is electrically connected with the alarm system; the ship control system is electrically connected with the signal receiving device;
when signal receiving arrangement can receive the wireless observing and controlling signal that signal sending device sent, the navigating mate passes through signal sending arrangement sends alarm signal to signal receiving arrangement, signal receiving arrangement sends alarm signal for ship control system, ship control system compares alarm signal with the signal of prestoring, judges the affiliated grade of alarm signal, according to the alarm grade difference, to alarm system sends different alarm response, alarm system is different according to the warning buzzing frequency and the buzzing volume that different alarm grades produced.
In another embodiment, when the signal receiving device can receive the signal sent by the signal sending device, but the signal received by matching is not completely matched with the sent signal, comparing the frequency amplitude of the received signal with a threshold range according to the comparison between the signal received by the signal receiving device and the wireless measurement and control signal, where the threshold range includes: a minimum threshold and a maximum threshold; if the frequency amplitude of the received signal is larger than the maximum threshold value and smaller than the standard value, the automatic ship power control device controls one power unit of the ship power system to stop running; if the frequency amplitude of the received signal is larger than the minimum threshold value and smaller than the maximum threshold value, the ship power automatic control device controls a ship power system to run at a reduced speed; and if the frequency amplitude of the received signal is smaller than the minimum threshold value, the automatic ship power control device controls the ship power system to stop running.
The working principle of the technical scheme is as follows: the scheme that this embodiment adopted is that when signal receiving arrangement can receive the signal that signal transmitting arrangement sent, but through the signal that matches received and the signal that sends incompletely match, compare the frequency amplitude of the signal received with threshold value scope according to signal and wireless observing and controlling signal that signal receiving arrangement received, the threshold value scope includes: a minimum threshold and a maximum threshold; if the frequency amplitude of the received signal is larger than the maximum threshold value and smaller than the standard value, the automatic ship power control device controls one power unit of the ship power system to stop running; if the frequency amplitude of the received signal is larger than the minimum threshold value and smaller than the maximum threshold value, the ship power automatic control device controls a ship power system to run at a reduced speed; and if the frequency amplitude of the received signal is smaller than the minimum threshold value, the automatic ship power control device controls the ship power system to stop running.
The beneficial effects of the above technical scheme are: by adopting the scheme provided by the embodiment, when the signal receiving device can receive the signal sent by the signal sending device, but the signal received by matching is not completely matched with the sent signal, the signal received by the signal receiving device is compared with the wireless measurement and control signal, the frequency amplitude of the received signal is compared with the threshold range, and the threshold range comprises: a minimum threshold and a maximum threshold; if the frequency amplitude of the received signal is larger than the maximum threshold value and smaller than the standard value, the automatic ship power control device controls one power unit of the ship power system to stop running; if the frequency amplitude of the received signal is larger than the minimum threshold value and smaller than the maximum threshold value, the ship power automatic control device controls a ship power system to run at a reduced speed; and if the frequency amplitude of the received signal is smaller than the minimum threshold value, the automatic ship power control device controls the ship power system to stop running. Providing a plurality of functions of receiving signals corresponding to different automatic operations.
In another embodiment, a path loss model is also included; determining a path loss based on the path loss model;
the construction mode of the path loss model comprises the following steps: constructing space loss based on free space loss, constructing reflection loss based on water surface reflection loss, constructing diffraction loss based on water surface diffraction loss, and constructing atmospheric absorption loss based on water surface atmospheric absorption loss; the space loss, the reflection loss, the diffraction loss and the atmospheric absorption loss are combined to construct total loss;
determining a path loss based on a total loss in the path loss model.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment also comprises a path loss model; determining a path loss based on the path loss model;
the construction mode of the path loss model comprises the following steps: constructing space loss based on free space loss, constructing reflection loss based on water surface reflection loss, constructing diffraction loss based on water surface diffraction loss, and constructing atmospheric absorption loss based on water surface atmospheric absorption loss; the space loss, the reflection loss, the diffraction loss and the atmospheric absorption loss are combined to construct total loss;
determining a path loss based on a total loss in the path loss model.
The beneficial effects of the above technical scheme are: the scheme provided by the embodiment also comprises a path loss model; determining a path loss based on the path loss model;
the construction mode of the path loss model comprises the following steps: constructing space loss based on free space loss, constructing reflection loss based on water surface reflection loss, constructing diffraction loss based on water surface diffraction loss, and constructing atmospheric absorption loss based on water surface atmospheric absorption loss; the space loss, the reflection loss, the diffraction loss and the atmospheric absorption loss are combined to construct a total loss;
determining a path loss based on a total loss in the path loss model. And the calculation precision is improved.
In another embodiment, the system also comprises signal acquisition equipment, a transmitting antenna array, a receiving antenna array, a transmission matrix acquisition device and a control computer; the transmitting antenna array is connected to the signal acquisition equipment, the receiving antenna array is placed in the front of the transmitting antenna array or in the vicinity of the front of the transmitting antenna array, the transmitting antenna array and the receiving antenna array adopt the same antenna array, and antenna units in the transmitting antenna array and the receiving antenna array respectively work in a transmitting state and a receiving state; the control computer is connected with the receiving antenna array; two ends of the transmission matrix acquisition device are respectively connected with the transmitting antenna array and the receiving antenna array;
acquiring multiple transmission signals from a signal acquisition device, using a transmitting antenna array to transmit data of each transmission signal in parallel, carrying out short-distance propagation on the transmission signals in a free space, and then receiving the transmission signals by a receiving antenna in parallel; determining a transmission matrix between a transmitting end antenna array and a receiving end antenna array by using a transmission matrix acquisition device according to the distance between the transmitting antenna array and the receiving antenna array, the distance between each antenna unit of the transmitting antenna array and each antenna unit of the receiving antenna array, the number of data streams and a signal frequency band, and sending the transmission matrix to a control computer;
the control computer calculates the condition number of the transmission matrix, and adjusts the distance between the transmitting antenna array and the receiving antenna array, the distance between each antenna unit of the transmitting antenna array and each antenna unit of the receiving antenna array, the number of data streams and the signal frequency band until the condition number of the set transmission matrix is obtained; and then the computer inverts the matrix of the obtained transmission matrix, loads the inverted matrix on the received signal, restores the original transmission signal by adjusting the amplitude and the phase of the received signal, and determines the transmission distance of the wireless signal based on the short-distance parallel wireless transmission of matrix inversion.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment also comprises signal acquisition equipment, a transmitting antenna array, a receiving antenna array, a transmission matrix acquisition device and a control computer; the transmitting antenna array is connected to the signal acquisition equipment, the receiving antenna array is placed in the front of the transmitting antenna array or in the vicinity of the front of the transmitting antenna array, the transmitting antenna array and the receiving antenna array adopt the same antenna array, and antenna units in the transmitting antenna array and the receiving antenna array respectively work in a transmitting state and a receiving state; the control computer is connected with the receiving antenna array; two ends of the transmission matrix acquisition device are respectively connected with the transmitting antenna array and the receiving antenna array;
acquiring multiple transmission signals from a signal acquisition device, transmitting data of each transmission signal in parallel by using a transmitting antenna array, transmitting the transmission signals in a short distance in a free space, and receiving the transmission signals in parallel by a receiving antenna; determining a transmission matrix between a transmitting end antenna array and a receiving end antenna array by using a transmission matrix acquisition device according to the distance between the transmitting antenna array and the receiving antenna array, the distance between each antenna unit of the transmitting antenna array and each antenna unit of the receiving antenna array, the number of data streams and a signal frequency band, and sending the transmission matrix to a control computer;
the control computer calculates the condition number of the transmission matrix, adjusts the distance between the transmitting antenna array and the receiving antenna array, the distance between each antenna unit of the transmitting antenna array and each antenna unit of the receiving antenna array, the number of data streams and the signal frequency band until the condition number of the set transmission matrix is obtained; and then the computer inverts the matrix of the obtained transmission matrix, loads the inverted matrix on the received signal, restores the original transmission signal by adjusting the amplitude and the phase of the received signal, and determines the transmission distance of the wireless signal based on the short-distance parallel wireless transmission of matrix inversion.
The beneficial effects of the above technical scheme are: the scheme provided by the embodiment also comprises signal acquisition equipment, a transmitting antenna array, a receiving antenna array, a transmission matrix acquisition device and a control computer; the transmitting antenna array is connected to the signal acquisition equipment, the receiving antenna array is placed in the front of the transmitting antenna array or in the vicinity of the front of the transmitting antenna array, the transmitting antenna array and the receiving antenna array adopt the same antenna array, and antenna units in the transmitting antenna array and the receiving antenna array respectively work in a transmitting state and a receiving state; the control computer is connected with the receiving antenna array; two ends of the transmission matrix acquisition device are respectively connected with the transmitting antenna array and the receiving antenna array;
acquiring multiple transmission signals from a signal acquisition device, using a transmitting antenna array to transmit data of each transmission signal in parallel, carrying out short-distance propagation on the transmission signals in a free space, and then receiving the transmission signals by a receiving antenna in parallel; according to the distance between the transmitting antenna array and the receiving antenna array, the distance between each antenna unit of the transmitting antenna array and each antenna unit of the receiving antenna array, the number of data streams and the signal frequency band, determining a transmission matrix between the transmitting end antenna array and the receiving end antenna array by using a transmission matrix acquisition device, and sending the transmission matrix to a control computer;
the control computer calculates the condition number of the transmission matrix, adjusts the distance between the transmitting antenna array and the receiving antenna array, the distance between each antenna unit of the transmitting antenna array and each antenna unit of the receiving antenna array, the number of data streams and the signal frequency band until the condition number of the set transmission matrix is obtained; and then the computer inverts the matrix of the obtained transmission matrix, loads the inverted matrix on the received signal, restores the original transmission signal by adjusting the amplitude and the phase of the received signal, and determines the transmission distance of the wireless signal based on the short-distance parallel wireless transmission of matrix inversion.
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 (10)
1. Protection system when ship driver people ship separation, its characterized in that includes:
the device comprises a ship power automatic control device, a signal receiving device, a ship power manual control device and a ship starting switch which are arranged on a ship; and a signal transmitting device worn on the driver;
the ship power automatic control device is respectively connected with the signal receiving device, the ship starting switch and the ship power manual control device by adopting electric signals;
the signal sending device sends a wireless measurement and control signal outwards, a ship power automatic control device is started, and whether a disconnection instruction is sent to the ship starting switch or not is judged based on whether the signal receiving device can receive the wireless measurement and control signal or not; after the ship power automatic control device is closed through the ship power manual control device, the control relation between the ship power automatic control device and a ship starting switch is disconnected.
2. The protection system for the separation of the ship driver and the ship as claimed in claim 1, wherein the ship power automatic control device is turned on by the ship power manual control device, and the ship power automatic control device controls the ship starting switch to be turned on or off by a control signal; when the signal receiving device receives the wireless measurement and control signal, the automatic ship power control device does not act, and the ship continues to run; when the signal receiving device can not receive the wireless measurement and control signal or the received signal and the wireless measurement and control signal are not matched, the ship power automatic control device sends a disconnection instruction to the ship starting switch, the ship starting switch disconnects the operation of the ship power system according to the disconnection instruction, and the ship stops running.
3. The protection system for the ship driver during the man-boat separation as claimed in claim 2, further comprising an encryption module, wherein the encryption module is connected with the ship power manual control device; determining whether the ship power manual control device is in a normal working state based on the verification function of the encryption module;
when the ship power manual control device is started or closed, a user inputs a password or a fingerprint through the encryption module, when the encryption module judges that the input password or the fingerprint is consistent with a pre-stored password or fingerprint, the encryption module sends an authenticated instruction to a switch button control system of the ship power manual control device, the ship power manual control device is in a normal working state, in the normal working state, the switch button control system controls a starting button and a closing button to be in a usable state, the ship power automatic control device is started through the starting button, and the ship power automatic control device is closed through the closing button; if the input password or the fingerprint is not consistent with the pre-stored password or the fingerprint, the encryption module sends an unauthenticated instruction to a switch button control system of the ship power manual control device, the ship power manual control device is in a non-working state, the switch button control system controls an opening button and a closing button to be in a non-working state, and the opening button and the closing button cannot normally open or close the ship power automatic control device.
4. The system for protecting a boat driver during separation of the boat according to claim 1,
the wireless measurement and control signal sent by the signal sending device covers a preset range, and the preset range is a circle formed by taking the signal sending device as a circle center and taking a preset distance as a radius;
the control and setting of the preset distance are determined based on the transmission power of the signal transmitting device, the transmission antenna gain, the sensitivity of the signal receiving device, the receiving antenna gain, the path loss, and the weather environment factor.
5. The protection system for the ship driver during the man-boat separation as claimed in claim 1, wherein when the signal receiving device can receive the wireless measurement and control signal transmitted by the signal transmitting device, a specific signal is transmitted to the signal receiving device through the signal transmitting device;
the signal sending device is integrated in wearable equipment, a control part of the signal sending device controls the signal sending device to send a wireless wave signal with a specific shape, after the wireless wave signal is transmitted to a signal receiving device on a ship, the signal receiving device receives the wireless wave signal and transmits the wireless wave signal to the automatic ship power control device, the automatic ship power control device compares the wireless wave signal with a pre-stored waveform, and if the wireless wave signal is matched with the pre-stored waveform, the automatic ship power control device starts a ship starting switch through a starting instruction to enable the ship to continue sailing; or the ship starting switch is turned off through the turn-off instruction, the ship starting switch cuts off the operation of the ship power system according to the turn-off instruction, and the ship stops running.
6. The protection system for a ship driver when separating from a ship of claim 2,
the disconnect vessel power system is a vessel power disconnect system based on different power sources of the vessel, the vessel power disconnect system comprising: stopping the rotation of the engine of the ship and lowering the sail.
7. The protection system for the ship driver during the man-boat separation as claimed in claim 1, further comprising a ship control system and an alarm system, wherein the ship control system is electrically connected with the alarm system; the ship control system is electrically connected with the signal receiving device;
when signal receiving arrangement can receive the wireless observing and controlling signal that signal sending device sent, the navigating mate passes through signal sending arrangement sends alarm signal to signal receiving arrangement, signal receiving arrangement sends alarm signal for ship control system, ship control system compares alarm signal with the signal of prestoring, judges the affiliated grade of alarm signal, according to the alarm grade difference, to alarm system sends different alarm response, alarm system is different according to the warning buzzing frequency and the buzzing volume that different alarm grades produced.
8. The protection system for the ship driver during the separation of the passenger from the ship as claimed in claim 1, wherein when the signal receiving device can receive the signal transmitted by the signal transmitting device, but the signal received by the signal receiving device is not completely matched with the transmitted signal, the signal received by the signal receiving device is compared with the wireless measurement and control signal, and the frequency amplitude of the received signal is compared with a threshold range, wherein the threshold range comprises: a minimum threshold and a maximum threshold; if the frequency amplitude of the received signal is larger than the maximum threshold value and smaller than a standard value, the automatic ship power control device controls one power unit of the ship power system to stop running; if the frequency amplitude of the received signal is larger than the minimum threshold value and smaller than the maximum threshold value, the ship power automatic control device controls a ship power system to run at a reduced speed; and if the frequency amplitude of the received signal is smaller than the minimum threshold value, the automatic control device for the ship power controls the ship power system to stop running.
9. The system for protection of a watercraft driver during disconnect of the watercraft of claim 4 further comprising a path loss model; determining a path loss based on the path loss model;
the construction mode of the path loss model comprises the following steps: constructing space loss based on free space loss, constructing reflection loss based on water surface reflection loss, constructing diffraction loss based on water surface diffraction loss, and constructing atmospheric absorption loss based on water surface atmospheric absorption loss; the space loss, the reflection loss, the diffraction loss and the atmospheric absorption loss are combined to construct a total loss;
determining a path loss based on a total loss in the path loss model.
10. The protection system for the separation of the ship driver and the human-ship according to claim 1, further comprising a signal acquisition device, a transmitting antenna array, a receiving antenna array, a transmission matrix acquisition device and a control computer; the transmitting antenna array is connected to the signal acquisition equipment, the receiving antenna array is placed in the front of the transmitting antenna array or in the vicinity of the front of the transmitting antenna array, the transmitting antenna array and the receiving antenna array adopt the same antenna array, and antenna units in the transmitting antenna array and the receiving antenna array respectively work in a transmitting state and a receiving state; the control computer is connected with the receiving antenna array; two ends of the transmission matrix acquisition device are respectively connected with the transmitting antenna array and the receiving antenna array;
acquiring multiple transmission signals from a signal acquisition device, transmitting data of each transmission signal in parallel by using a transmitting antenna array, transmitting the transmission signals in a short distance in a free space, and receiving the transmission signals in parallel by a receiving antenna; determining a transmission matrix between a transmitting end antenna array and a receiving end antenna array by using a transmission matrix acquisition device according to the distance between the transmitting antenna array and the receiving antenna array, the distance between each antenna unit of the transmitting antenna array and each antenna unit of the receiving antenna array, the number of data streams and a signal frequency band, and sending the transmission matrix to a control computer;
the control computer calculates the condition number of the transmission matrix, adjusts the distance between the transmitting antenna array and the receiving antenna array, the distance between each antenna unit of the transmitting antenna array and each antenna unit of the receiving antenna array, the number of data streams and the signal frequency band until the condition number of the set transmission matrix is obtained; the computer performs matrix inversion on the obtained transmission matrix, loads the inversion matrix on the received signals, restores the original transmission signals by adjusting the amplitude and the phase of the received signals, and determines the transmission distance of the wireless signals based on the short-distance parallel wireless transmission of the matrix inversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210960626.1A CN115367088A (en) | 2022-08-11 | 2022-08-11 | Protection system for ship driver during separation of ship and passenger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210960626.1A CN115367088A (en) | 2022-08-11 | 2022-08-11 | Protection system for ship driver during separation of ship and passenger |
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| Publication Number | Publication Date |
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| CN115367088A true CN115367088A (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210960626.1A Pending CN115367088A (en) | 2022-08-11 | 2022-08-11 | Protection system for ship driver during separation of ship and passenger |
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| Country | Link |
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| CN (1) | CN115367088A (en) |
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2022
- 2022-08-11 CN CN202210960626.1A patent/CN115367088A/en active Pending
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Application publication date: 20221122 |