CN112837518B

CN112837518B - Monitoring system

Info

Publication number: CN112837518B
Application number: CN201911166026.2A
Authority: CN
Inventors: 马浩
Original assignee: Beijing Health Yangfan Technology Co ltd
Current assignee: Changzhou Qianfan Technology Co.,Ltd.
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2023-05-23
Anticipated expiration: 2039-11-25
Also published as: CN112837518A

Abstract

The invention discloses a monitoring system, comprising: a wireless self-generating device capable of being pressed to generate encoded information, having a wireless transmitting module for transmitting the encoded information; a call button having a wireless receiving module; the controller is connected with the wireless self-generating device and the call button and can control the monitoring system to enter a learning state and a working state; in a learning state, the wireless receiving module receives the coding information transmitted by the wireless transmitting module within a set time, establishes a coding pairing relation between a group of wireless self-generating devices and a call button, and stores the coding pairing relation; any wireless self-generating device regenerates a group of new coding pairing relations after the pairing process, and the old coding pairing relations are deleted; in the working state, after the wireless self-generating device is pressed, the wireless receiving module receives the coded information and sends a call request to the display end after the coded information is successfully matched with the stored coded information. The invention can enlarge the calling request range.

Description

Monitoring system

Technical Field

The present invention relates to the field of monitoring technologies, and in particular, to a monitoring system.

Background

With the development of society, people are increasingly demanding for the aged, and the trend of aging is continuously rising, so that attention is paid to the aged and how to better care the aged.

In older or disabled, lost intelligence, disabled etc. groups, a number of problems need to be considered, such as caregivers/nurses cannot care in real time, when one caregivers care a plurality of old people, the old people cannot care, wheelchair assistance is needed when leaving the bed, but the wheelchair is often at a distance, the old people leave the bed for real-time monitoring and the problem that timely emergency call is needed is caused. In addition, when the old has a call request, the used call system is often wired, and the call request can be initiated only in a limited range; and the calling system often needs extra power supply, and the calling is inconvenient to use.

Disclosure of Invention

The invention aims to solve the technical problems of limited calling range and inconvenient calling use. The invention provides a monitoring system, which can realize wireless call request, has the advantages of expanded application range, no need of charging a wireless self-generating device, coding and decoding functions, can identify which user initiates the call request, is suitable for the scenes needing to be monitored, such as hospitals, nursing homes and the like, and has a self-learning function. .

In order to solve the above technical problems, an embodiment of the present invention discloses a monitoring system, including: a wireless self-generating device capable of being pressed to generate encoded information, having a wireless transmitting module for transmitting the encoded information; the calling button is arranged in a room and is provided with a wireless receiving module; the controller is connected with the wireless self-generating device and the call button and can control the monitoring system to enter a learning state and a working state; in the learning state, the wireless receiving module receives the coding information transmitted by the wireless transmitting module within a set time, establishes a group of coding pairing relations between the wireless self-generating device and the call button and stores the coding pairing relations; any wireless self-generating device regenerates a group of new coding pairing relations after the pairing process, and the old coding pairing relations are deleted; in the working state, after the wireless self-generating device is pressed, the wireless receiving module receives the coded information and sends a call request to a display end after the coded information is successfully matched with the stored coded information.

As a preferred embodiment of the present invention, the set time is within 1 minute.

As a preferred embodiment of the present invention, the wireless self-generating device comprises a button, a pressing generating module, a rectifying circuit, a wireless coding chip and a wireless transmitting circuit which are connected, wherein the wireless transmitting circuit is connected with the wireless transmitting module, and when the button is pressed, the pressing generating module generates an induced voltage to supply power to the wireless transmitting module and transmits the coded information through the wireless transmitting module.

As a preferred embodiment of the present invention, the call button includes a power supply circuit, a wireless decoding chip, and a wireless receiving circuit connected to the wireless receiving module.

As a preferred embodiment of the present invention, the wireless self-generating device further comprises a receiving bell, wherein the receiving bell establishes a pairing relationship with the wireless self-generating device, and when the wireless self-generating device is pressed, the controller drives the receiving bell paired with the wireless self-generating device to send out a call request sound reminder.

As a preferred embodiment of the present invention, further comprising:

the bed leaving detection device is used for detecting state data of the bed;

The alarm device is used for giving an alarm and is connected with the call button, and the call button is used for opening or closing the alarm device;

the bed leaving detection device and the alarm device are connected with the controller, the controller acquires the state data of the bed detected by the bed leaving detection device to judge whether a user of the bed leaves the bed, and when the controller judges that the user leaves the bed, the controller controls the alarm device to alarm.

As a preferred embodiment of the present invention, further comprising: the walking auxiliary device is used for assisting a user to move, and when the controller judges that the user leaves the bed and the walking auxiliary device is started, the walking auxiliary device is driven to move towards the bed, and meanwhile the alarm device is controlled to give an alarm.

As a preferred embodiment of the present invention, the number of the call buttons is plural, one call button corresponds to one bed, and the present invention further includes an encoder for numbering the call button corresponding to the bed, and when the controller receives a call request of the call button, the code of the call button corresponding to the encoder is obtained to determine the bed corresponding to the number.

As a preferred embodiment of the present invention, the off-bed detection means comprises a pressure sensor arranged under the bed for detecting pressure data of the bed.

As a preferred embodiment of the present invention, the controller is wirelessly connected to the bed-leaving detection device, the walking aid device, the call button, and the alarm device.

Drawings

FIG. 1 is a schematic diagram of a monitoring system according to the present invention;

FIG. 2 is a flowchart illustrating a monitoring system according to the present invention;

FIG. 3 is a schematic diagram of a monitoring system according to the present invention;

fig. 4 is a perspective view of the wireless self-generating device of the present invention;

FIG. 5 is a second flowchart of monitoring system determination according to the present invention;

FIG. 6 is a flowchart of a monitoring system according to the present invention;

FIG. 7 is a flowchart of a monitoring system according to the present invention;

FIG. 8 is a second perspective view of the self-generating key device of the present invention;

fig. 9 is a perspective view of the self-generating key device of the present invention;

fig. 10 is a perspective view of a self-generating key device of the present invention;

FIG. 11 is a cross-sectional view of the self-generating key device of the present invention;

fig. 12 is an exploded perspective view of the self-generating key device of the present invention.

Detailed Description

Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present invention with specific examples. While the description of the invention will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the invention described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the invention. The following description contains many specific details for the purpose of providing a thorough understanding of the present invention. The invention may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the invention. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.

It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present embodiment, it should be noted that, the azimuth or positional relationship indicated by the terms "upper", "inner", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention.

In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

A monitoring system based on the internet of things sensing technology according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings, as shown in fig. 1, and includes an out-of-bed detection device 10, a walking aid 20, an alarm device 30, a call button 40, and a controller 50. The Internet of things induction technology refers to a technology for intelligently and organically combining equipment by using a sensor and an Internet of things communication technology.

Specifically, the bed exit detecting device 10 is used for detecting status data of a bed, wherein the status data of the bed may include a weight of the bed, whether a person is on the bed or an empty status, and the like, and may be measured by a pressure sensor or an infrared sensor, respectively. Whether the user leaves or is in the bed is judged by the state data of the bed, wherein the user can be a sick patient or a crowd needing to be cared, such as the old.

The walking assist device 20 is used for assisting the movement of the user, and the walking assist device 20 may be an intelligent wheelchair, a supporting tool, or the like. The alarm device 30 is used for giving an alarm, the call button 40 is connected with the alarm device 30 and used for turning on or off the alarm device 30, and the call button 40 can be directly controlled by the controller 50 as a button; the control may be performed by pressing a person, for example, after the old people leave the bed, the caretaker may press the call button 40 for a long time to turn off the alarm device 30, and the alarm device 30 may be a buzzer, a motor vibrator, or the like, or may be a lamp tube alarm mode, such as an indicator lamp to prompt the caretaker, or may be a mode that multiple alarm devices 30 coexist, which is not limited herein. In addition, the calling button 40 in the invention can be provided with a plurality of wireless calling buttons, and the wireless calling buttons can be arranged at a nurse station, a bedside and the like, so that the alarm can be turned on or off.

The controller 50 is connected with the bed leaving detection device 10, the walking assist device 20, the call button 40 and the alarm device 30, the controller 50 acquires the state data of the bed detected by the bed leaving detection device 10 to judge whether the user of the bed leaves the bed, and when the controller 50 judges that the user leaves the bed, and when the walking assist device 20 is started, the walking assist device 20 is driven to move the walking assist device 20 to the bed direction, and the alarm device 30 is controlled to alarm. Preferably, the alarm device 30 is controlled to alarm when the controller 50 determines that the user is out of bed.

That is, when the controller 50 determines that the user leaves the bed according to the data detected by the exit bed detection device 10, the controller 50 controls the alarm device 30 to alarm, and controls the walking assistance device 20 to move to the bedside for the user, and the guardian can check the safety condition of the user in time. Alternatively, the controller 50 controls the alarm device 30 to alarm, and the guardian can check the safety condition of the user in time.

As a preferred embodiment of the present invention, referring to fig. 3, the monitoring system of the present invention further comprises: a calling module 80, the calling module 80 is worn by a user, and the calling module 80 is used for sending a calling request of using the walking assistance device 20. The controller 50 is connected to the call module 80. When the controller 50 receives the call request and when the walking assistance device 20 is turned on, the walking assistance device 20 is driven so that the walking assistance device 20 moves toward the user. That is, when a user has a need to use the walking assistance device 20, a call request for using the walking assistance device 20 can be issued by operating the call module 80. The need for the user to use the walking assist device 20 during the monitoring process is satisfied.

The user may be located in the bed of the room, in the bathroom of the room, or somewhere else in the room, and may be able to make a call request to the walking aid device 20 by operating the call module 80 whenever there is a need to use the walking aid device 20.

In other words, the monitoring system of the present invention can drive the walking aid 20 to move to the user according to the call request sent by the user call module 80; alternatively, when the controller 50 determines that the user is out of bed, the walking assist device 20 is driven to move toward the user. It should be noted that, when the controller 50 obtains the call request sent by the call module 80 and determines that the user gets out of the bed, the walking assistance device 20 can be driven to move toward the user.

As a preferred embodiment of the present invention, the monitoring system further comprises: the first positioning device is arranged on the bed and is used for sending first position information of the bed in real time; the second positioning device is arranged on the walking auxiliary device 20 and is used for sending second position information of the walking auxiliary device 20 in real time; third positioning means, provided on the calling module 80, for transmitting the third position information of the user in real time; a navigation system connected to the controller 50 and having an electronic map on which the first position information, the second position information, and the third position information are displayed; the controller 50 generates a first walking path on the electronic map according to the first position information and the second position information, or the controller 50 generates a second walking path on the electronic map according to the second position information and the third position information; the controller 50 drives the walking assistance device 20 to move toward the user according to the first walking path or the second walking path.

As a preferred embodiment of the present invention, the electronic map is a three-dimensional map of a room, the first location information reflects the location of a bed in the room, the second location information reflects the location of the walking assistance device 20, and the third location information reflects the location of the calling module 80, that is, the location of the user. Thus, positioning of the bed, the walking assist device 20, and the user on the electronic map is achieved. After the first position information, the second position information and the third position information are determined, the first walking path and the second walking path can be determined, which is equivalent to generating a navigation path, and the walking aid 20 is navigated to the user, so as to meet the requirement of the user on using the walking aid 20.

The positioning device provides the walking assistance device 20 with positioning information of the relative position, so that the walking assistance device 20 can understand where to be, the relative position relationship of a user or a bed, and the like, and the automatic running accuracy of the walking assistance device 20 is ensured.

As a preferred embodiment of the present invention, the first positioning device, the second positioning device and the third positioning device are UWB indoor positioning systems. The UWB indoor positioning system includes a plurality of positioning base stations provided in a building to be navigated and positioning tags mounted on the positioned devices (bed, walking aid 20 and call module 80). That is, the bed, the walking assistance device 20, and the call module 80 of the present invention realize positioning on an electronic map based on the UWB indoor positioning system to generate the first walking path or the second walking path.

As a preferred embodiment of the present invention, the walking assist device 20 is provided with a laser radar for scanning the current scene to generate the electronic map. As a preferred embodiment of the present invention, the laser radar scans the room at 360 degrees and full angles, and based on the scanning of the distance information, a corresponding relationship between the distance information of each boundary in the room can be generated, and based on this relationship, the position of the walking assistance device 20 can be mapped to the environment, so as to obtain an electronic map of the room. The laser radar can continuously and circularly scan and refresh the latest scene information in real time in the walking process of the walking auxiliary device 20. This arrangement facilitates navigation of the walking assistance device 20.

As a preferred embodiment of the present invention, the walking assistance device 20 is provided with an ultrasonic radar for acquiring fourth position information of an obstacle around the walking assistance device 20, the fourth position information is displayed on the electronic map, the controller 50 updates the first walking path or the second walking path on the electronic map according to the fourth position information, and drives the walking assistance device 20 to move to the user according to the updated first walking path or second walking path. Object distance information in all directions is obtained by the ultrasonic radar, and possible obstacles in all directions and distances between the obstacles and the walking aid 20 are calculated. The fourth position information and the second position information can calculate the distance between the travel assist apparatus 20 and the obstacle.

In this process, when the controller 50 determines that there is an obstacle, the first travel path or the second travel path is updated, and the travel assist device 20 is driven to move toward the user according to the updated first travel path or second travel path. Thus, when an obstacle occurs during walking of the walking assistance device 20, the controller 50 controls the walking assistance device 20 to perform a deceleration, avoidance, or stop operation.

As a preferred embodiment of the present invention, a gyroscope is provided on the walking assist device 20 for detecting a walking posture of the walking assist device 20, and the controller 50 adjusts the walking posture of the walking assist device 20 according to the first walking path or the second walking path so that the walking assist device 20 moves toward the user along the first walking path or the second walking path. The walking posture includes a movement direction, a movement speed, a turning direction, a turning angle, and a turning speed of the walking assistance device 20.

That is, the movement direction, movement speed, turning direction, turning angle, turning speed of the walking assistance device 20 are detected by using the gyro technology. When the movement direction, movement speed, turning direction, turning angle, turning speed of the walking aid 20 during the walking along the first walking path or the second walking path are not within the normal range, it is indicated that the walking aid 20 deviates from the prescribed walking path, which requires controlling the walking posture of the walking aid 20 so that the walking aid 20 can accurately walk along the first walking path or the second walking path, and guiding the walking aid 20 to accurately turn and accurately walk.

As a preferred embodiment of the present invention, the walking assist device 20 comprises a smart wheelchair, the smart wheelchair comprises a control unit, a communication module, a motor, a camera and the aforementioned laser radar connected with the control unit, the controller 50 is connected with the communication module, and after the communication module receives a driving instruction of the controller 50, the control unit controls the motor to be turned on to drive the smart wheelchair to move to the user, and the smart wheelchair is navigated to the bed through the camera and the laser radar. The camera can provide images for the intelligent wheelchair and can complete vision related control such as automatic following, vision labeling, gesture operation and the like.

As a preferred embodiment of the invention, the motor is a servo motor, the servo motor provides power for the movement of the intelligent wheelchair, the servo motor is provided with a code disc, and the code disc is used for detecting the movement angle of the servo motor so as to realize fine control on the movement process of the intelligent wheelchair. Or the motor is a stepping motor, and the fine control on the movement process of the intelligent wheelchair can be realized.

As a preferred embodiment of the present invention, the communication module is a wireless communication module. The wireless communication module may be directly connected to the call module 80 to issue a call request to the controller 50 using the walking assistance device 20; or directly connected with the bed leaving detection device 10, and transmits the state data of the bed detected by the bed leaving detection device 10 to the controller 50 so that the controller 50 can judge whether the user of the bed leaves the bed.

As a preferred embodiment of the present invention, the monitoring system further comprises a ROS operating system, which is a dedicated robotic operating system for the walking aid 20; the industrial personal computer is a carrier of a software operating system and is used for performing various intelligent operations so as to accurately control the walking auxiliary device 20; the memory is used for storing related software such as an electronic map, an operating system and the like; a battery, a dedicated rechargeable lithium battery may be used to power the entire system.

Furthermore, the walking assist device 20 of the present invention can be parked in any position of the area of use. 1) The user has stronger mobility. When the user gets up, the walking assist device 20 can automatically obtain the user getting out of the bed signal, and can automatically travel to the front of the user's bed, thereby facilitating the use of the user. 2) The user has a weak mobility. The user may call the walking assistance device 20 to move ahead of bed to standby using the call module 80. The walking assist device 20 is seated on the walking assist device 20, and the walking assist device 20 can be controlled to move forward and backward and turn left and right by an operation lever, and the walking assist device 20 can be automatically returned to charge when the power of the walking assist device 20 is insufficient.

Preferably, the number of call buttons 40 is plural, and one call button 40 corresponds to one bed. The present invention may further include an encoder 70, wherein the encoder 70 is configured to number the call button 40 corresponding to the bed, and the encoder 70 is connected to the controller 50 by encoding the bed and the call button 40, and when the controller 50 receives a call request from the call button 40, the encoding of the corresponding call button 40 or the corresponding bed in the encoder 70 is acquired to determine the bed corresponding to the number. Thus, it is possible to know which user's room the call request is.

Preferably, the call button 40 is a self-generating wireless button, including an induction coil that converts mechanical energy of the press into electrical energy when the button is pressed according to the principle of electromagnetic induction, and transmits the electrical energy to the controller 50 through a 433MHz antenna. Thus, it is also possible to know which user's room the call request is. Preferably, the aforementioned call module 80 is a self-generating wireless button. Preferably, the internal structures of the call button 40 and the call module 80 may be the same as those of the self-generating key device 90 of the later-described embodiment.

As a preferred embodiment of the present invention, the controller 50 may be connected to a background server, and may upload information such as the acquired status data of the user to the server, so that the caretaker can timely know whether the user is away from the bed or is in the bed.

The monitoring system based on the Internet of things sensing technology also comprises a night lamp switch, wherein the night lamp switch can comprise a switch body, a communication module and a relay. The night lamp switch is connected with the controller 50, and when the controller 50 judges that the user of bed leaves the bed, the controller 50 sends an opening command to the communication module of the night lamp switch, and the trigger relay opens the night lamp switch, namely, controls the night lamp switch to open the night lamp.

That is, when the controller 50 determines that the time is at night, the user leaves the bed at this time, the controller 50 also timely controls the night lamp switch to turn on the night lamp, so as to avoid the situations of inconvenient turn-on of the night lamp by the user, accidents, and the like.

In a preferred embodiment of the invention, the off-bed detection means comprises a pressure sensor arranged under the bed for detecting pressure data of the bed. The pressure sensor is a flexible pressure sensor, sensing data sent by the flexible pressure sensor is sent to the controller 50, and the controller 50 receives the sensing data and judges whether a user leaves the bed or not according to the sensing data, for example, the pressure is 5N when the user is empty and 200N when the user is on the bed, so that the state of leaving the bed or being on the bed can be judged according to the sensing data.

Preferably, the pressure sensor package is changed to a headset connector. The packaging of the 2 Pin needles of the pressure sensor was modified to a 3.5mm earphone. That is, the connection between the pressure sensor and the receiving terminal (e.g., call button 40) is a plug-in connection, similar to the plug-in connection of a headphone plug and a headphone jack. The pressure sensor is provided with a sensor plug, the receiving end is provided with a sensor jack for the sensor plug to be inserted, the inner peripheral surface of the sensor jack is provided with a jack terminal, the outer peripheral surface of the sensor plug is provided with a plug terminal, and the jack terminal can be electrically connected with the plug terminal. After the arrangement, the pressure sensor and the receiving end are convenient to install, produce and maintain.

Further, the system of the present invention may further include a display end 60, where the display end 60 is connected to the controller 50 and is used for displaying the state of whether the user leaves the bed or not and the on-line state of the controller 50, which are judged by the controller 50. That is, the controller 50 can upload the status of the user and the device to the display end 60, and display the status through the display end 60, and the display end 60 can be a terminal device with a display function, such as a SAAS system, a computer, a mobile phone, and a flat panel light device, and the device can directly access the controller 50 through a website, so as to facilitate observation of the status of the bed. The display end 60 may display the above system status in real time through sound or optics.

Preferably, the controller 50 is wirelessly connected to the bed exit detection device 10, the walking assist device 20, the call button 40, and the alarm device 30, including WiFi, zigbee, GSM, WCDMA, LTE, 5G, etc.

The following describes the process of judging in the monitoring process of the present invention with reference to the accompanying drawings, as a preferred embodiment of the present invention, as shown in fig. 2, after the system is powered on by plugging in, the system is first powered on and connected to a network, each component is connected to a controller, and when the component is connected, an indicator light flashes to disconnect the network, for example, a blue light flashes, and the display system is networked. The indication light is on or the buzzer sounds to judge that the network is connected, for example, the buzzer sounds for 2 seconds, the blue light is on, and the display system is connected. Preferably, an indicator light and a buzzer are provided on the controller 50.

The controller 50 determines whether the user is in bed, if the user is out of bed, the controller gives an out-of-bed alarm, and if the user is not out of bed, the controller can give out an in-bed signal, and determines whether the call button is pressed. If the alarm is sent out, the system enters an alarm state, and the buzzer sounds short or the green light is on. If the calling button is pressed for a long time, an alarm releasing signal is sent out, the alarm is released, the buzzer sounds for 2 times, and the green light is turned off. It can also judge whether the wireless call button is pressed, if so, send out alarm signal. And whether a wireless call button arranged at the monitoring end is pressed or not can be judged, if yes, the alarm is remotely released, and the system is in an alarm releasing state.

According to the monitoring system based on the Internet of things sensing technology, after a user leaves a bed, the state of the user can be monitored timely, the corresponding walking auxiliary device 20 is moved to the bedside, so that the monitoring system is convenient for the user to use, and meanwhile, an alarm can be sent out to remind a nurse, so that the safety of the user is better protected. The intelligent wheelchair is effectively combined through the technology of the Internet of things, and meets the scene requirement.

Referring to fig. 4 and 5 in conjunction with fig. 1 to 3, the present invention further provides a monitoring system, comprising:

The wireless self-generating device, in particular the wireless self-generating key device 90, can be pressed to generate encoded information, and is provided with a wireless transmitting module for transmitting the encoded information; the wireless self-generating key device 90 does not need an additional battery, can convert mechanical energy into electric energy during working, generates electric quantity required by working, does not need to be charged for a user, and is obviously better in convenience for the user to use; in a preferred embodiment of the present invention, after the wireless self-generating key device 90 is pressed, an electric quantity of not less than 250uJ is generated due to the electromagnetic induction principle;

a call button 40 provided in a room and having a wireless receiving module; in a preferred embodiment of the present invention, the call button 40 is the call button described in the previous embodiment;

the controller 50 is connected with the wireless self-generating key device 90 and the call button 40, and the controller 50 can control the monitoring system to enter a learning state and a working state; in a preferred embodiment of the present invention, the controller 50 is the controller described in the previous embodiment;

in the learning state, the wireless receiving module receives the coded information transmitted by the wireless transmitting module within a set time, establishes a group of coding pairing relations between the wireless self-generating key device 90 and the call button 40, and stores the coding pairing relations; any wireless self-generating key device 90 regenerates a new set of code pairing relationships through the pairing process, and the old code pairing relationships are deleted; that is, in the learning state, the wireless self-generating key device 90 is paired with the call button 40, one wireless self-generating key device 90 corresponds to one call button 40, and when a user in the corresponding room uses the wireless self-generating key device 90, the call button 40 in the corresponding room responds; when the wireless self-generating key device 90 is lost carelessly, a new wireless self-generating key device 90 can be used, and the wireless self-generating key device can be paired with the call button 40 in the corresponding room again in a learning state, so that a user can pair the wireless self-generating key device 90 by himself.

In a preferred embodiment of the present invention, referring to fig. 5, the learning process described above may be implemented as follows:

1. the user sends a wireless key learning command through the APP or the front end of the webpage;

2. a bedside call button 40 for sending the command to the user pair by the server after the command reaches the server;

3. the corresponding bedside call button 40 enters a learning state after receiving the relevant command;

4. in the learn state, the first wireless transmit code received by the bedside call button 40 is recorded by the device;

5. the bedside call button 40 will use the code of the wireless self-generating key device 90 as a pairing password, and only respond to the signal of the wireless self-generating key device 90 later, the signals of other wireless self-generating key devices 90 will not be responded to.

When the wireless self-generating key device 90 is lost, in the learning state, the call button 40 receives the code information transmitted by the next new wireless self-generating key device 90, records the code of the wireless self-generating key device 90, uses the code of the new wireless self-generating key device 90 as a new pairing password, and the old pairing password is deleted, and only responds to the signal of the new wireless self-generating key device 90, but does not respond to the signal of other wireless self-generating key devices 90.

In the working state, after the wireless self-generating key device 90 is pressed, the wireless receiving module receives the encoded information and sends a call request to the display end 60 after being successfully matched with the stored encoded information; the display 60 may display the call information, including which room the user initiated the call request, and the display 60 may be a computer, a mobile phone, a tablet, etc.

Therefore, the monitoring system of the invention realizes wireless call request, has the advantages of expanded application range, no need of charging the wireless self-generating key device 90, encoding and decoding functions, can identify which user initiates the call request, is suitable for the occasions needing to be monitored, such as hospitals, nursing homes, and the like, and the call button 40 also has a self-learning function.

In a preferred embodiment of the invention, the set time is within 1 minute. In the learning state, the code information received by the call button 40 within 1 minute is recorded, and the code pairing relationship is established. The setting time is not limited, and the setting can be correspondingly set according to the actual application scene.

Referring to fig. 4, 6 and 7, in a preferred embodiment of the present invention, the wireless self-generating key device 90 includes a key 91, a pressing power generation module, a rectifying circuit, a wireless coding chip, and a wireless transmitting circuit connected to the wireless transmitting module, and when the key 91 is pressed, the pressing power generation module generates an induced voltage to supply power to the wireless transmitting module and transmits the coded information through the wireless transmitting module. Preferably, the wireless transmitting module is a 433MHz (or 240 MHz) antenna. Namely, the wireless self-generating key device 90 can complete the power generation/rectification/encoding/signal acquisition/radio frequency signal generation/signal transmission through a 433MHz (or 240 MHz) antenna.

In a preferred embodiment of the present invention, the call button 40 includes a power supply circuit, a wireless decoding chip, and a wireless receiving circuit connected to the wireless receiving module, as shown in fig. 6 and 7. Preferably, the wireless receiving module is connected as a 433MHz (or 240 MHz) antenna. I.e. the call button 40 can complete: the radio frequency signal is received/decoded/sent to the back-end server function through WiFi/Zigbee and the like.

Referring to fig. 6 and 7, the user presses a key to start generating electricity, turns the electricity generated by the electricity generation module of the wireless self-generating key device 90 into power which can be used by the wireless transmitting module, encodes the transmitting signal by the wireless encoding chip, reads the encoded information, and transmits the encoded information through the wireless transmitting module. The wireless receiving module of the call button 40 receives the encoded information, the wireless decoding chip decodes the encoded information, and the stored code comparison confirms the key identity, if the encoded information is matched with the stored code comparison confirms the key identity, the related information is sent to the server, and the call information is displayed on the terminal interface.

In a preferred embodiment of the present invention, the wireless self-generating key device 90 further comprises a receiving bell, wherein the receiving bell establishes a pairing relationship with the wireless self-generating key device 90, and when the wireless self-generating key device 90 is pressed, the controller 50 drives the receiving bell paired with the wireless self-generating key device 90 to send out a call request sound reminder. I.e. by receiving the bell as an additional call reminder.

In a preferred embodiment of the present invention, the bed leaving detection device 10, the alarm device and the walking aid device 20 according to the previous embodiments are further included.

Referring to fig. 8 to 11, the present invention further provides a self-generating key device 90, preferably for use in the monitoring system of any of the foregoing embodiments. The key device 90 includes: a housing 100; a first key mechanism 200 disposed in the housing 100 and capable of being pressed to rotate about a first rotation axis 210 (shown in the direction M in fig. 11), the first key mechanism 200 having a first end 220 remote from the first rotation axis 210; the second key mechanism 300 is disposed in the housing 100 and can be pressed to rotate about a second rotation axis 310 (shown in the direction N in fig. 11), the second key mechanism 300 has a second end 320 far from the second rotation axis 310, and the first end 220 is located above the second end 320.

In some embodiments, the first end 220 is positioned above the second end 320 in the thickness direction of the housing 100 (shown in the Z-direction in fig. 11 of the drawings). In some embodiments, the first axis of rotation 210 is parallel to the second axis of rotation 310. In some embodiments, the first and second

rotating shafts

210 and 310 are spaced apart along the length direction (shown in the X direction in fig. 11) of the housing 100.

Further comprising a power generation module (not shown), wherein upon pressing (pressing force F is shown in fig. 9 and 11) the first key mechanism 200, the first end 220 is in contact with the second end 320, and the second end 320 can be pressed by the first end 220 to generate power from the power generation module. Wherein the first end 220 and the second end 320 are in contact before the first key mechanism 200 is pressed; alternatively, the first end 220 and the second end 320 are not in contact before the first key mechanism 200 is pressed. In some embodiments, the power generation module is connected to the second key mechanism 300, and after the second key mechanism 300 is pressed, the magnetic flux in the coil of the power generation module is changed, and the power generation module generates power.

Referring to fig. 11, a contact point (shown in a fig. 11) of the first end 220 and the second end 320 has a first distance (shown in a fig. 11) from an axial center (shown in a fig. 11B) of the first shaft 210 in a direction perpendicular to the first shaft 210, and a contact point of the first end 220 and the second end 320 has a second distance (shown in a fig. 11C) from an axial center (shown in a fig. 11C) of the second shaft 310 in a direction perpendicular to the second shaft 310, the first distance being greater than the second distance.

The first distance is a first force arm of the first key mechanism 200, the second distance is a second force arm of the second key mechanism 300, and the second force arm is smaller than the first force arm, so that when the second end 320 of the second key mechanism 300 is pressed to enable the power generation module to generate power, the required acting force F is small, and the user presses the power generation easily, so that the power generation device is particularly suitable for the elderly with smaller force. In some embodiments, the ratio of the first distance to the second distance is between 2 and 5, including 2 and 5, e.g., 2.5, 3.6, 4.7, etc. However, the ratio of the first distance to the second distance is not limited, and the first distance and the second distance are set correspondingly according to the pressing requirement.

In some embodiments, the first end 220 and the second end 320 are resiliently biased against each other. That is, the first key mechanism 200 and the second key mechanism 300 are elastically abutted. Referring to fig. 11 and 12, the key device 90 further includes an elastic member 400, where the elastic member 400 is connected to the second key mechanism 300, and after the second end 320 is pressed, the second key mechanism 300 can be reset, so that the user has a good pressing feel. The type of the elastic member 400 is not limited, and the elastic member 400 is a spring in this embodiment. The elastic member 400 is sleeved on the second rotating shaft 310, one end of the elastic member abuts against the second key mechanism 300, and the other end abuts against the housing 100.

After the second key mechanism 300 is pressed, the portion of the elastic member 400 abutting against the second key mechanism 300 is also pressed, and deformed, and after the acting force applied to the first key mechanism 200 is eliminated, the second key mechanism 300 is reset under the action of the elastic force of the elastic member 400. Meanwhile, the elastic force of the elastic member 400 can also ensure that the first end 220 of the first key mechanism 200 and the second end 320 of the second key mechanism 300 are elastically abutted.

Referring to fig. 10 and 11, the first end 220 of the first key mechanism 200 has a protrusion 230 extending toward the second end 320 of the second key mechanism 300, the protrusion 230 being for contacting the second end 320. So configured, when a pressing force F is applied at the first end 220 of the first key mechanism 200, the convex portion 230 contacts the second end 320 to transmit the pressing force to the second end 320; since the protrusion 230 contacts the second end 320, the second key mechanism 300 can be pressed with a small pressing force, and the power generation operation is completed. That is, the pressing force applied to the first key mechanism 200 is smaller, which is more advantageous for the user.

Referring to fig. 9 to 11, in the present embodiment, the first key mechanism 200 has a body portion having the first end 220, the body portion is parallel to the upper surface of the housing 100, and the second key mechanism 300 is disposed obliquely toward the convex portion 230. In this embodiment, the body portion is flat and extends in the longitudinal direction of the housing 100 (shown in the X direction in fig. 9 and 11).

Referring to fig. 8 and 11, in some embodiments, the key device 90 further includes: the button 91 corresponding to the first end 220 of the first key mechanism 200 may be integrally formed with the first key mechanism 200 or may be separately formed. The button 91 is elastically supported by the housing 100, partially inside the housing 100, partially outside the housing 100, and the button 91 can be pressed to press the first end 220. That is, by applying a pressing force to the button 91, the button 91 transmits the pressing force to the first end 220 of the first key mechanism 200, and then the second key mechanism 300 is pressed to cause the power generation module to generate power.

In some embodiments, the key device 90 further includes: the circuit board 500 is connected with the power generation module, and a rectifying circuit, a wireless coding chip, a wireless transmitting circuit and a wireless transmitting module which are connected are integrated on the circuit board 500. When the first key mechanism 200 is pressed, the power generation module generates an induced voltage to supply power to the circuit board 500, and transmits the encoded information through the wireless transmission module, which can be specifically referred to the description of the monitoring system part in the foregoing embodiment, and will not be described herein. Note that, the key device 90 is not limited to transmitting the encoded information after being pressed, and may transmit other trigger signals wirelessly.

With continued reference to fig. 11 and 12, the housing 100 of the key device 90 includes: the bottom shell 110, wherein a first limiting part 120 is arranged on the bottom shell 110; the outer edge of the mounting frame 130 is adapted to the inner edge of the first limiting portion 120, so as to limit the first limiting portion 120. In this embodiment, the overall inner edge profile of the first limiting portion 120 is polygonal, and correspondingly, the overall outer edge profile of the mounting frame 130 is polygonal, and the mounting frame 130 is placed in the first limiting portion 120, so that the mounting frame 130 is limited and has good connection stability.

Wherein the second key mechanism 300, the power generation module, and the circuit board 500 are mounted on the mounting frame 130; the second rotating shaft 310 is fixedly connected with the mounting frame 130, and the second key mechanism 300 is rotatably connected with the mounting frame 130 through the second rotating shaft 310. The circuit board 500 is clamped with the mounting frame 130, a plurality of hooks 510 are disposed on the mounting frame 130, and the circuit board 500 is clamped with the plurality of hooks 510. Before the first key mechanism 200 is pressed, the circuit board 500 is disposed in parallel with the first key mechanism 200.

The casing 100 further includes an inner casing 140 disposed on the bottom casing 110, wherein an inner edge of the inner casing 140 is adapted to an outer edge of the first limiting portion 120, the inner edge of the inner casing 140 is disposed around the first limiting portion 120 so as to be limited at the first limiting portion 120, and the first key mechanism 200 is mounted at an opening 141 of one side of the inner casing 140 away from the bottom casing 110; and the outer sleeve 150 is covered on the inner shell 140 and is in sealing connection with the bottom shell 110, the button 91 is partially positioned in the outer sleeve 150 and partially positioned outside the outer sleeve 150, and the first key mechanism 200 is at least partially attached to the inner surface of the outer sleeve 150, so that the first key mechanism 200 is pressed. After the housing 100 is so arranged, the sealing performance is good, and the connection stability is good.

After the outer edge of the inner case 140 is glued once, the outer case 150 is assembled to the bottom case 110, so that the sealing performance is good, and the outer case 150 can use a waterproof material (for example, TPU), so that the waterproof effect can be achieved. IPX 7-level waterproof can be set, so that the bath-care device can be used conveniently when a user takes a bath, and a call request is sent.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the invention with reference to specific embodiments, and it is not intended to limit the practice of the invention to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present invention.

Claims

1. A monitoring system, comprising:

a wireless self-generating device capable of being pressed to generate encoded information, having a wireless transmitting module for transmitting the encoded information;

the calling button is arranged in a room and is provided with a wireless receiving module;

the controller is connected with the wireless self-generating device and the call button and can control the monitoring system to enter a learning state and a working state;

In the learning state, the wireless receiving module receives the coding information transmitted by the wireless transmitting module within a set time, establishes a group of coding pairing relations between the wireless self-generating device and the call button and stores the coding pairing relations; any wireless self-generating device regenerates a group of new coding pairing relations after the pairing process, and the old coding pairing relations are deleted;

in the working state, after the wireless self-generating device is pressed, the wireless receiving module receives the coded information and sends a call request to a display end after the coded information is successfully matched with the stored coded information;

the learning state includes the following processes:

the user sends a wireless key learning command through the APP or the front end of the webpage;

after the command reaches the server, the server sends the command to a call button beside the matched bed of the user;

the corresponding call button beside the bed enters a learning state after receiving the related command;

in a learning state, the first wireless transmitting code received by the call button beside the bed is recorded by the equipment;

the bedside call button takes the code of the wireless self-generating key device as a pairing password, only responds to the signal of the wireless self-generating key device later, and the signals of other wireless self-generating key devices are not responded.

2. The monitoring system of claim 1, wherein the set time is within 1 minute.

3. The monitoring system of claim 1, wherein the wireless self-generating device comprises a button, a push generating module, a rectifying circuit, a wireless coding chip, and a wireless transmitting circuit connected to the wireless transmitting module, wherein when the button is pushed, the push generating module generates an induced voltage to supply power to the wireless transmitting module and transmits the coded information through the wireless transmitting module.

4. The monitoring system of claim 3, wherein the call button comprises a power circuit, a wireless decoding chip, and a wireless receiving circuit connected, the wireless receiving circuit being connected to the wireless receiving module.

5. The monitoring system of claim 1, further comprising a receiving bell, the receiving bell establishing a pairing relationship with the wireless self-generating device, the controller driving the receiving bell paired with the wireless self-generating device to emit a call request audible alert when the wireless self-generating device is pressed.

6. The monitoring system of claim 1, further comprising:

the bed leaving detection device is used for detecting state data of the bed;

7. The monitoring system of claim 6, further comprising: the walking auxiliary device is used for assisting a user to move, and when the controller judges that the user leaves the bed and the walking auxiliary device is started, the walking auxiliary device is driven to move towards the bed, and meanwhile the alarm device is controlled to give an alarm.

8. The monitoring system of claim 6, wherein the number of the call buttons is a plurality, one of the call buttons corresponds to one of the beds, further comprising an encoder for numbering the call button corresponding to the bed, and when the controller receives a call request from the call button, the code of the call button corresponding to the encoder is obtained to determine the bed corresponding to the number.

9. The monitoring system of claim 6, wherein the off-bed detection device comprises a pressure sensor disposed under a bed for detecting pressure data of the bed.

10. The monitoring system of claim 7, wherein the controller is wirelessly coupled to the bed exit detection device, the walking aid device, the call button, and the alarm device.