CN103645741B - A kind of seat adjustment control method and system - Google Patents
A kind of seat adjustment control method and system Download PDFInfo
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- CN103645741B CN103645741B CN201310590601.8A CN201310590601A CN103645741B CN 103645741 B CN103645741 B CN 103645741B CN 201310590601 A CN201310590601 A CN 201310590601A CN 103645741 B CN103645741 B CN 103645741B
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Abstract
The present invention is applicable to seat regulation technology field, provide a kind of seat adjustment control method and system, described method includes: ultrasonic range finder, after unlatching, obtains the sitting posture data that user is current, and described sitting posture data are transferred to by signal emission electrode each position of user's body；Signal-receiving electrode receives described sitting posture data, and described sitting posture data are sent to the controller of user's front seat；Described controller, according to described sitting posture data, controls the electric adjustable pole of described seat to regulate described seat；Wherein, described signal emission electrode is arranged on described ultrasonic range finder surface, and described signal-receiving electrode is arranged on the place that described seat contacts with user's body。The state the most reasonable, user's body is the most useful can be automatically adjusted to by seat of the present invention。And realize simply, conveniently, accurately。
Description
Technical field
The invention belongs to seat and regulate field, particularly relate to a kind of seat adjustment control method and system。
Background technology
Along with the development of society, increasing job demand has been seated for a long time。Present many deskmans add that office chair altitude mixture control is improper, it is easy to cause uncomfortable due to long-time with incorrect sitting work, unhealthful。
Current height-adjustable office chair is mainly by manual adjustments。Lifting action is to be controlled by the pillar air pressure rod between chair bottom and seat cushion。But, manual adjustments there will be adjustment and is highly not easily controlled, and namely not easily adjusts optimum height。Meanwhile, manual adjustments is likely to only to be adjusted by office chair the state meeting personal like with comfort level, but this state is likely to not be state that health is the most useful, equally can be unhealthful。
Summary of the invention
The embodiment of the present invention is in that to provide a kind of seat adjustment control method, to solve operation inconvenience that existing office chair Non-follow control causes and to operate inaccurate unhealthful problem。
The first aspect of the embodiment of the present invention, it is provided that a kind of seat adjustment control method, described method includes:
Ultrasonic range finder, after unlatching, obtains the sitting posture data that user is current, and described sitting posture data is transferred to by signal emission electrode each position of user's body；
Signal-receiving electrode receives described sitting posture data, and described sitting posture data are sent to the controller of user's front seat；
Described controller, according to described sitting posture data, controls the electric adjustable pole of described seat to regulate described seat；
Wherein, described signal emission electrode is arranged on described ultrasonic range finder surface, and described signal-receiving electrode is arranged on the place that described seat contacts with user's body。
The second aspect of the embodiment of the present invention, it is provided that a kind of seat adjustment control system, described system includes:
Ultrasonic range finder, signal emission electrode, signal-receiving electrode and seat, described seat comprises controller and electric adjustable pole；
Described ultrasonic range finder, for, after unlatching, obtaining the sitting posture data that user is current, and described sitting posture data be transferred to by signal emission electrode each position of user's body；
Described signal-receiving electrode, is used for receiving described sitting posture data, and described sitting posture data is sent to the controller of user's front seat；
Described controller is used for, and according to described sitting posture data, controls the electric adjustable pole of described seat to regulate described seat；
Wherein, described signal emission electrode is arranged on described ultrasonic range finder surface, and described signal-receiving electrode is arranged on the place that described seat contacts with user's body。
The embodiment of the present invention compared with prior art exists and provides the benefit that: the embodiment of the present invention obtains, by ultrasonic range finder, the sitting posture data that user is current, and described sitting posture data are sent to the controller of seat, make sitting posture data described in described controller, control the electric adjustable pole of described seat to be automatically adjusted described seat。By the embodiment of the present invention, seat can be automatically adjusted to the most rationally, the state that user's body is the most useful。And realize simply, conveniently, accurately, there is stronger usability and practicality。
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings。
Fig. 1 is the composition structure chart of the seat adjustment control system that first embodiment of the invention provides；
Fig. 2 is the exemplary plot that sitting posture data measured by the right angle electric expansion bar that first embodiment of the invention provides；
Fig. 3 is the exemplary plot that sitting posture data measured by the vertical electric expansion bar that first embodiment of the invention provides；
Fig. 4 is the application scenarios figure of the seat adjustment control system that first embodiment of the invention provides；
Fig. 5 is the flowchart of the seat adjustment control method that second embodiment of the invention provides。
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated。Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention。
In order to technical solutions according to the invention are described, illustrate below by specific embodiment。
Embodiment one:
Fig. 1 illustrates the composition structure of the seat adjustment control system that first embodiment of the invention provides, and for the ease of illustrating, illustrate only the part relevant to the embodiment of the present invention。
As it is shown in figure 1, this seat adjustment control system includes ultrasonic range finder 1, signal emission electrode 2, signal-receiving electrode 3 and seat 4。
Wherein, described seat 4 comprises controller 41 and electric adjustable pole 42；Described signal emission electrode 2 is arranged on described ultrasonic range finder 1 surface, and described signal-receiving electrode 3 is arranged on the place that described seat 4 contacts with user's body。
In the present embodiment, described ultrasonic range finder 1, after unlatching, obtains the sitting posture data that user is current, and described sitting posture data is transferred to by signal emission electrode 2 each position of user's body。Described signal-receiving electrode 3 receives described sitting posture data, and described sitting posture data are sent to the controller 41 of user's front seat 4, and described controller 41, according to described sitting posture data, controls the electric adjustable pole 42 of described seat 4 to regulate described seat 4。
Further, described ultrasonic range finder 1 comprises right angle electric expansion bar；Described signal emission electrode 2 comprises human body communication transmitter and electrode；
Described ultrasonic range finder 1, specifically for after unlatching, control described right angle electric expansion bar to stretch out from described ultrasonic range finder, and extend to vertical direction, stop being elongated to after higher than the predetermined altitude on the user crown, continue to control described right angle electric expansion bar to extend to horizontal direction, stop being elongated to after directly over the user crown, receive hair by the ultrasonic emitting of described right angle electric expansion bar horizontal direction end and penetrate ultrasound wave, after the user crown is reflected, ultrasonic emitting receives head and receives the ultrasound wave being reflected back, and calculate the user crown distance (as shown in Figure 2) to horizon bar end according to launching and receiving hyperacoustic time difference, control described right angle electric expansion bar to be retracted in described ultrasonic range finder 1；
Described ultrasonic range finder 1, it is additionally operable to the difference calculating the described predetermined altitude higher than the user crown and the user crown to horizon bar end distance, using described difference as the current sitting posture data of user, and described sitting posture data are sent to described human body communication transmitter；
Described human body communication transmitter is used for, and described sitting posture data are transferred to each position of user's body by described electrode。
Or, described ultrasonic range finder 1 comprises the vertical electric expansion bar being provided with multiple ultrasonic emitting reception head or infrared ray transmitter and receiver head, and each ultrasonic emitting receives head or infrared ray transmitter and receiver head has the corresponding height (as shown in Figure 3) higher than desktop；Described signal emission electrode 2 comprises human body communication transmitter and electrode, and described electrode is connected directly between on the metallic conductor of described human body communication transmitter, has transport properties, and described electrode can be metal, conducting resinl etc.；
Described ultrasonic range finder 1, specifically for, after unlatching, controlling described vertical electric expansion bar and stretch out from described ultrasonic range finder, and extends to vertical direction, stops being elongated to after higher than the predetermined altitude on the user crown；
Described vertical electric expansion bar, multiple ultrasonic emitting for passing through to be disposed thereon receive head or ultrasound wave or infrared ray (as shown in Figure 3) are penetrated and received to infrared ray transmitter and receiver hair, and will launch and receive ultrasound wave or infrared ray time difference first time occurs that the ultrasonic emitting of significant change receives head or the height higher than desktop corresponding to infrared ray transmitter and receiver head as obtaining the current sitting posture data of user, and described sitting posture data are sent to described ultrasonic range finder 1；
Receive head or infrared emitting transmitting it should be noted that the present embodiment contrasts each ultrasonic emitting on described vertical electric expansion bar according to order from bottom to top and receive ultrasound wave or infrared ray time difference。Receive the time difference of the echo being partially received of any on the time difference of echo and the user crown in the place on the user crown and have significant difference, take the time difference receiving echo and the height that place is the user crown of significant change (namely the current time difference of echo and the difference of the time difference of last reception echo of receiving is more than predetermined threshold value) occurs for the first time, such as the 1st emitting and receiving head transmitting and reception ultrasound wave or ultrared time difference are 3ms, 2nd is 4ms, 3rd is 5ms, 4th is 50ms, then using the 4th height that emitting and receiving head is corresponding as the current sitting posture data of user。
Described ultrasonic range finder 1, is additionally operable to control described vertical electric expansion bar and is retracted in described ultrasonic range finder 1, and described sitting posture data are sent to described human body communication transmitter；
Described human body communication transmitter, for being transferred to each position of user's body by described electrode by described sitting posture data。
Further, described ultrasonic range finder 1 also includes photographic head and speaker:
Described ultrasonic range finder 1, for after unlatching, image information by camera collection user, judge that according to described image information whether the current sitting posture of user is correct, if current abnormal sitting posture is true and the time of described incorrect sitting posture more than the first predetermined threshold value time, sending voice message by described speaker, prompting user adjusts sitting posture。
Additionally, described ultrasonic range finder 1, it is additionally operable to after unlatching, image information by camera collection user, judge that according to described image information whether the current sitting posture of user is correct, if the time of the current correct and described correct sitting posture of sitting posture is more than the second predetermined threshold value, sending voice message by speaker, prompting user has a rest。
Below by a concrete application scenarios, books inventive embodiments is described, as shown in Figure 4:
In the diagram, 1 be ultrasonic range finder, 2 be signal emission electrode, 3 be human body channel, 4 be arbitrary position (such as hands, foot, shoulder, back etc.) of human body, 5 be signal-receiving electrode, 6 for electric adjustable pole。
In this application scenarios, user is sitting on office chair, and ultrasonic range finder 1 is placed on the table, and signal emission electrode 2 is placed in the surface of described ultrasonic range finder 1。When described ultrasonic range finder 1 detects that user's is manually placed on described signal emission electrode 2, ultrasonic range finder 1 starts, stretch out from described ultrasonic range finder 1 higher than the right angle electric expansion bar of height of table top for measuring human body, described right angle electric expansion bar extends to vertical direction, stop being elongated to after higher than the predetermined altitude on the user crown, continue to control described right angle electric expansion bar to extend to horizontal direction, stop being elongated to after directly over the user crown, receive hair by the ultrasonic emitting of described right angle electric expansion bar horizontal direction end and penetrate ultrasound wave, after the user crown is reflected, ultrasonic emitting receives head and receives the ultrasound wave being reflected back, and calculate the user crown distance S=Ct/2 to horizon bar end according to launching and receiving hyperacoustic time difference, C in formula is ultrasonic velocity, t is for launching ultrasound wave and receiving hyperacoustic time difference, using described higher than the height on the user crown and the user crown to the difference of horizon bar end distance as the current sitting posture data of user, namely user's current body is higher than the height of desktop。Described sitting posture data are carried out processing accordingly (such as being compared with the height under standard sitting posture by the height currently obtained by described ultrasonic range finder 1, obtain the height that office chair should adjust) afterwards by the human body communication transmitter in communications interface transmission to described signal emission electrode 2, data after process are mail to human body channel 3 by electrode by human body communication transceiver again, it is transferred to arbitrary position 4(of human body back as shown in Figure 4) by human body channel 3, described human body channel can be from any point of health to health additionally a bit, such as from left hand to the right hand or from left hand to back etc.。It is arranged on described office chair, and include electrode and human body communication receptor etc. with signal-receiving electrode 5 described in the signal-receiving electrode 5(of user's back contact, described electrode is connected with human body communication receptor) receive the sitting posture data after described process, and the sitting posture data after described process are sent to the controller of office chair, described controller, according to the sitting posture data after described process, controls the electric adjustable pole 6 of described office chair so that described office chair to be adjusted to the height corresponding with the sitting posture data after described process。It addition, during user handles official business, photographic head on described ultrasonic range finder and speaker are by collaborative work。Namely by the image information of camera collection user, judge that according to described image information whether the current sitting posture of user is correct, if current abnormal sitting posture is true and the time of described incorrect sitting posture more than the first predetermined threshold value (such as 3 minutes) time, sending voice message by described speaker, prompting user adjusts sitting posture。If the time of the current correct and described correct sitting posture of sitting posture is more than the second predetermined threshold value (such as one hour), sending voice message by speaker, prompting user has a rest。
It should be noted that, the present embodiment human body communication technology is using " people " as telecommunication media, sensing node (i.e. electrode) and people fit tightly (surface is pasted or across clothes etc.), the mode coupled by Capacitance Coupled or alternating current carries out information transmission at human body, there is extremely low power dissipation, the characteristics such as high data transmission, it is possible to efficiently transmit information easily。
It addition, the application scenarios that the present embodiment provides is served only for explaining the present invention, do not limit protection scope of the present invention。
Embodiment two:
What Fig. 5 illustrated the seat adjustment control method that second embodiment of the invention provides realizes flow process, and the method can be applicable in the system shown in Fig. 1, and details are as follows for its process:
In step S501, ultrasonic range finder, after unlatching, obtains the sitting posture data that user is current, and described sitting posture data is transferred to by signal emission electrode each position of user's body。
In the present embodiment, described signal emission electrode is placed in described ultrasonic range finder surface, and described ultrasonic range finder is placed on desktop。
Concrete, described ultrasonic range finder comprises the right angle electric expansion bar being provided with ultrasonic emitting reception head；Described signal emission electrode comprises human body communication transmitter and electrode；
Described ultrasonic range finder is after unlatching, control described right angle electric expansion bar to stretch out from described ultrasonic range finder, and extend to vertical direction, stop being elongated to after higher than the predetermined altitude on the user crown, continue to control described right angle electric expansion bar to extend to horizontal direction, stop being elongated to after directly over the user crown, receive hair by the ultrasonic emitting of described right angle electric expansion bar horizontal direction end and penetrate ultrasound wave, after the user crown is reflected, ultrasonic emitting receives head and receives the ultrasound wave being reflected back, and calculate the user crown distance to horizon bar end according to launching and receiving hyperacoustic time difference；
Described right angle electric expansion bar is retracted in described ultrasonic range finder；
Described ultrasonic range finder calculates the difference of the described predetermined altitude higher than the user crown and the user crown to horizon bar end distance, using described difference as the current sitting posture data of user, and described sitting posture data is sent to described human body communication transmitter；
Described sitting posture data are transferred to each position of user's body by described human body communication transmitter by described electrode。
It addition, described ultrasonic range finder comprises the vertical electric expansion bar being provided with multiple ultrasonic emitting reception head or infrared ray transmitter and receiver head, each ultrasonic emitting receives head or infrared ray transmitter and receiver head has the corresponding height higher than desktop；Described signal emission electrode comprises human body communication transmitter and electrode；
Described ultrasonic range finder, after unlatching, obtains the sitting posture data that user is current, and is specifically included at each position that described sitting posture data are transferred to user's body by signal emission electrode:
Described ultrasonic range finder is after unlatching, control described vertical electric expansion bar to stretch out from described ultrasonic range finder, and extend to vertical direction, stop being elongated to after higher than the predetermined altitude on the user crown, described vertical electric expansion bar receives head by the multiple ultrasonic emitting being disposed thereon or ultrasound wave or infrared ray are penetrated and received to infrared ray transmitter and receiver hair, and will launch and receive ultrasound wave or infrared ray time difference first time occurs that the ultrasonic emitting of significant change receives head or the height higher than desktop corresponding to infrared ray transmitter and receiver head as the current sitting posture data of user, and described sitting posture data are sent to described ultrasonic range finder；
Described vertical electric expansion bar is retracted in described ultrasonic range finder；
Described sitting posture data are sent to described human body communication transmitter by described ultrasonic range finder；
Described sitting posture data are transferred to each position of user's body by described human body communication transmitter by described electrode。
It should be noted that, the described vertical electric expansion bar being provided with multiple ultrasonic emitting reception head or infrared ray transmitter and receiver head, each ultrasonic emitting receives head or infrared ray transmitter and receiver head has the corresponding height higher than desktop, by starting the position, the crown as user, the position that significant change occurs using receiving echo time difference, it is possible to quickly obtain user's current body height higher than desktop。
In step S502, signal-receiving electrode receives described sitting posture data, and described sitting posture data are sent to the controller of user's front seat。
In the present embodiment, described signal-receiving electrode comprises human body communication receptor and electrode, and described electrode is connected directly between on the metallic conductor of described human body communication transmitter, has transport properties, and described electrode can be metal, conducting resinl etc.。
In the present embodiment, it is arranged on described office chair, and the signal-receiving electrode contacted with the arbitrary position of user (such as back) receives described sitting posture data。
It should be noted that described sitting posture data can be data after treatment, it is also possible to be that described controller processes after receiving described sitting posture data again。Described process includes comparing the sitting posture data (such as user predecessor's height is in the height of desktop) currently obtained with the sitting posture data under standard sitting posture, obtains the data that seat should adjust。
In step S503, described controller, according to described sitting posture data, controls the electric adjustable pole of described seat to regulate described seat。
In the present embodiment, described controller, according to the sitting posture data after processing, controls the electric adjustable pole of described seat so that described seat to be adjusted to the state corresponding with the sitting posture data after described process。
Further, described ultrasonic range finder also includes photographic head and speaker:
Described ultrasonic range finder is after unlatching, image information by camera collection user, judge that the current sitting posture of user is whether correct (such as judge user's head portrait whether in preset range etc.) according to described image information, if current abnormal sitting posture is true and the time of described incorrect sitting posture more than the first predetermined threshold value (such as 3 minutes) time, sending voice message by described speaker, prompting user adjusts sitting posture；
If the time of the current correct and described correct sitting posture of sitting posture is more than the second predetermined threshold value (such as 1 hour), sending voice message by speaker, prompting user has a rest。
In sum, have only to simply touch ultrasonic range finder by embodiment of the present invention user, seat just can be automatically adjusted to standard state (namely the most reasonable, user's body is the most useful state), improves the accuracy of adjustment while reducing user operation。And user can be made to keep correct sitting work by sitting posture detection, prompting function, and reduce mistake sitting posture and cause uncomfortable, unhealthful probability。The embodiment of the present invention realizes simple, and hardware requirement is relatively low, has stronger usability and practicality。
Those skilled in the art is it can be understood that arrive, for convenience and simplicity of description, in several embodiments that the embodiment of the present invention provides, it should be understood that disclosed system, apparatus and method, it is possible to realize by another way。Such as, the system structure shown in Fig. 1 is not intended that the restriction to this system, it is possible to includes ratio and illustrates more or less of parts, or combines some parts, or different parts are arranged。Another point, shown or discussed coupling each other or direct-coupling or communication connection can be through INDIRECT COUPLING or the communication connection of some interfaces, device or unit, it is possible to be electronics, machinery or other form。
Those of ordinary skill in the art it is also understood that, realize all or part of step in above-described embodiment method to can be by the hardware that program carrys out instruction relevant and complete, described program can in being stored in a computer read/write memory medium, described storage medium, including ROM/RAM, disk, CD etc.。
Above content is in conjunction with concrete preferred implementation further description made for the present invention, it is impossible to assert that specific embodiment of the invention is confined to these explanations。For general technical staff of the technical field of the invention; make some equivalent replacements or obvious modification without departing from the inventive concept of the premise; and performance or purposes are identical, the scope of patent protection that the present invention is determined all should be considered as belonging to by submitted claims。
Claims (6)
1. a seat adjustment control method, it is characterised in that described method includes:
Ultrasonic range finder, after unlatching, obtains the sitting posture data that user is current, and described sitting posture data is transferred to by signal emission electrode each position of user's body；
Signal-receiving electrode receives described sitting posture data, and described sitting posture data are sent to the controller of user's front seat；
Described controller, according to described sitting posture data, controls the electric adjustable pole of described seat to regulate described seat；
Wherein, described signal emission electrode is arranged on described ultrasonic range finder surface, and described signal-receiving electrode is arranged on the place that described seat contacts with user's body；
Described ultrasonic range finder comprises the right angle electric expansion bar being provided with ultrasonic emitting reception head；Described signal emission electrode comprises human body communication transmitter and electrode；
Described ultrasonic range finder, after unlatching, obtains the sitting posture data that user is current, and is specifically included at each position that described sitting posture data are transferred to user's body by signal emission electrode:
Described ultrasonic range finder is after unlatching, control described right angle electric expansion bar to stretch out from described ultrasonic range finder, and extend to vertical direction, stop being elongated to after higher than the predetermined altitude on the user crown, continue to control described right angle electric expansion bar to extend to horizontal direction, stop being elongated to after directly over the user crown, receive hair by the ultrasonic emitting of described right angle electric expansion bar horizontal direction end and penetrate ultrasound wave, after the user crown is reflected, ultrasonic emitting receives head and receives the ultrasound wave being reflected back, and calculate the user crown distance to horizon bar end according to launching and receiving hyperacoustic time difference；
Described right angle electric expansion bar is retracted in described ultrasonic range finder；
Described ultrasonic range finder calculates the difference of the described predetermined altitude higher than the user crown and the user crown to horizon bar end distance, using described difference as the current sitting posture data of user, and described sitting posture data is sent to described human body communication transmitter；
Described sitting posture data are transferred to each position of user's body by described human body communication transmitter by described signal emission electrode；
Or,
Described ultrasonic range finder comprises the vertical electric expansion bar being provided with multiple ultrasonic emitting reception head or infrared ray transmitter and receiver head, and each ultrasonic emitting receives head or infrared ray transmitter and receiver head has the corresponding height higher than desktop；Described signal emission electrode comprises human body communication transmitter and electrode；
Described ultrasonic range finder, after unlatching, obtains the sitting posture data that user is current, and is specifically included at each position that described sitting posture data are transferred to user's body by signal emission electrode:
Described ultrasonic range finder is after unlatching, control described vertical electric expansion bar to stretch out from described ultrasonic range finder, and extend to vertical direction, stop being elongated to after higher than the predetermined altitude on the user crown, described vertical electric expansion bar receives head by the multiple ultrasonic emitting being disposed thereon or ultrasound wave or infrared ray are penetrated and received to infrared ray transmitter and receiver hair, to launch and receive ultrasound wave or infrared ray time difference first time occurs that the ultrasonic emitting of significant change receives head or the height higher than desktop corresponding to infrared ray transmitter and receiver head as the current sitting posture data of user, and described sitting posture data are sent to described ultrasonic range finder；
Described vertical electric expansion bar is retracted in described ultrasonic range finder；
Described sitting posture data are sent to described human body communication transmitter by described ultrasonic range finder；
Described sitting posture data are transferred to each position of user's body by described human body communication transmitter by described electrode。
2. the method for claim 1, it is characterised in that described ultrasonic range finder also includes photographic head and speaker:
Described ultrasonic range finder is after unlatching, image information by camera collection user, judge that according to described image information whether the current sitting posture of user is correct, if the time of the current true and incorrect sitting posture of abnormal sitting posture is more than the first predetermined threshold value, sending voice message by described speaker, prompting user adjusts sitting posture。
3. method as claimed in claim 1 or 2, it is characterised in that described method also includes:
Described ultrasonic range finder is after unlatching, image information by camera collection user, judge that according to described image information whether the current sitting posture of user is correct, if the time of the current correct and correct sitting posture of sitting posture is more than the second predetermined threshold value, sending voice message by speaker, prompting user has a rest。
4. a seat adjustment control system, it is characterised in that described system includes:
Ultrasonic range finder, signal emission electrode, signal-receiving electrode and seat, described seat comprises controller and electric adjustable pole；
Described ultrasonic range finder, for, after unlatching, obtaining the sitting posture data that user is current, and described sitting posture data be transferred to by signal emission electrode each position of user's body；
Described signal-receiving electrode, is used for receiving described sitting posture data, and described sitting posture data is sent to the controller of user's front seat；
Described controller is used for, and according to described sitting posture data, controls the electric adjustable pole of described seat to regulate described seat；
Wherein, described signal emission electrode is arranged on described ultrasonic range finder surface, and described signal-receiving electrode is arranged on the place that described seat contacts with user's body；
Described ultrasonic range finder comprises the right angle electric expansion bar being provided with ultrasonic emitting reception head；Described signal emission electrode comprises human body communication transmitter and electrode；
Described ultrasonic range finder, specifically for after unlatching, control described right angle electric expansion bar to stretch out from described ultrasonic range finder, and extend to vertical direction, stop being elongated to after higher than the predetermined altitude on the user crown, continue to control described right angle electric expansion bar to extend to horizontal direction, stop being elongated to after directly over the user crown, receive hair by the ultrasonic emitting of described right angle electric expansion bar horizontal direction end and penetrate ultrasound wave, after the user crown is reflected, ultrasonic emitting receives head and receives the ultrasound wave being reflected back, and calculate the user crown distance to horizon bar end according to launching and receiving hyperacoustic time difference, control described right angle electric expansion bar to be retracted in described ultrasonic range finder；
Described ultrasonic range finder, is additionally operable to calculate the difference of the described predetermined altitude higher than the user crown and the user crown to horizon bar end distance, using described difference as the current sitting posture data of user, and described sitting posture data is sent to described human body communication transmitter；
Described human body communication transmitter is used for, and described sitting posture data are transferred to each position of user's body by described electrode；
Or,
Described ultrasonic range finder comprises the vertical electric expansion bar being provided with multiple ultrasonic emitting reception head or infrared ray transmitter and receiver head, and each ultrasonic emitting receives head or infrared ray transmitter and receiver head has the corresponding height higher than desktop；Described signal emission electrode comprises human body communication transmitter and electrode；
Described ultrasonic range finder, specifically for, after unlatching, controlling described vertical electric expansion bar and stretch out from described ultrasonic range finder, and extends to vertical direction, stops being elongated to after higher than the predetermined altitude on the user crown；
Described vertical electric expansion bar, multiple ultrasonic emitting for passing through to be disposed thereon receive head or ultrasound wave or infrared ray are penetrated and received to infrared ray transmitter and receiver hair, to launch and receive ultrasound wave or infrared ray time difference first time occurs that the ultrasonic emitting of significant change receives head or the height higher than desktop corresponding to infrared ray transmitter and receiver head as the current sitting posture data of user, and described sitting posture data are sent to described ultrasonic range finder；
Described ultrasonic range finder, is additionally operable to control described vertical electric expansion bar and is retracted in described ultrasonic range finder, and described sitting posture data are sent to described human body communication transmitter；
Described human body communication transmitter, for being transferred to each position of user's body by described signal emission electrode by described sitting posture data。
5. system as claimed in claim 4, it is characterised in that described ultrasonic range finder also includes photographic head and speaker:
Described ultrasonic range finder, for after unlatching, image information by camera collection user, judge that according to described image information whether the current sitting posture of user is correct, if the time of the current true and incorrect sitting posture of abnormal sitting posture is more than the first predetermined threshold value, sending voice message by described speaker, prompting user adjusts sitting posture。
6. the system as described in claim 4 or 5, it is characterized in that, described ultrasonic range finder, it is additionally operable to after unlatching, by the image information of camera collection user, judge that according to described image information whether the current sitting posture of user is correct, if the time of the current correct and correct sitting posture of sitting posture is more than the second predetermined threshold value, sending voice message by speaker, prompting user has a rest。
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| CN103645741A (en) | 2014-03-19 |
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