CN103239233A - Fall detection system based on interface extension - Google Patents
Fall detection system based on interface extension Download PDFInfo
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- CN103239233A CN103239233A CN2012100255035A CN201210025503A CN103239233A CN 103239233 A CN103239233 A CN 103239233A CN 2012100255035 A CN2012100255035 A CN 2012100255035A CN 201210025503 A CN201210025503 A CN 201210025503A CN 103239233 A CN103239233 A CN 103239233A
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Abstract
The invention provides a fall detection system based on interface extension. The fall detection system based on the interface extension at least comprises a plurality of splicing fall detection carpets with first interfaces, an interface extension unit with a third interface and a plurality of second interfaces and a detection unit with a fourth interface, wherein each second interface is connected with one first interface, the fourth interface is connected with the third interface, a first selection signal is sent out through the fourth interface so as to enable the interface extension unit to select one second interface on the basis of the selection signal conveniently, an electric signal output by the splicing fall detection carpet connected with the second interface is sent back, and the detection unit determines whether fall occurs according to the electric signal from the splicing fall detection carpet. The fall detection system based on the interface extension has the advantage that connection of the plurality of the splicing fall detection carpets can be achieved on the basis of the interface extension, and the fall detection system based on the interface extension facilitates use of users and effectively reduces using cost of the user.
Description
Technical field
The present invention relates to detection range, particularly relate to a kind of fall detection system based on the interface expansion.
Background technology
Along with China enters aging society, old man colony increases rapidly, and the old man is owing to the reason of health is very likely fallen, and old man's the behavior of falling is fatal often.
Existing fall detection technology has a variety of, classify from the channel of signals collecting, the fall detection technology can be divided into four classes: based on the fall detection system of video, based on the fall detection system of acoustics, based on the fall detection system of Wearable sensor and based on the fall detection system of pressure transducer.
All have deficiency based on existing fall detection technology, the application's applicant has proposed a kind of sliceable fall detection carpet in another part application, can detect the generation of whether falling by the analysis to the signal of telecommunication of this fall detection carpet output.Yet; in actual applications; the general user usually can be in each room; for example; toilet, kitchen, bedroom etc.; all lay the sliceable fall detection carpet of this kind; for such as large-scale places such as nursing houses; especially need be in each room of each floor in addition corridor etc. all lay the sliceable fall detection carpet of this kind; based on so many sliceable fall detection carpet; how being connected with checkout gear, occurring in falling of a certain sliceable fall detection carpet surface so that checkout gear can effectively detect, is the problem that the applicant need solve.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of fall detection system based on the interface expansion, realizing being connected of a checkout gear and a plurality of sliceable fall detection carpets, in order to can detect multizone more, detect the generation of whether falling.
Reach other relevant purposes for achieving the above object, the invention provides a kind of fall detection system based on the interface expansion, described fall detection system based on the interface expansion comprises at least: a plurality of sliceable fall detection carpets with first interface; The interface expanding element has the 3rd interface and a plurality of second interface, and wherein, each second interface connects first interface; Detecting unit with the 4th interface, described the 4th interface connects the 3rd interface, be used for by the 4th interface spread out of first select signal in case described interface expanding element based on this selections signal select second interface, and the signal of telecommunication exported of the sliceable fall detection carpet that will this second interface connects pass back, described detecting unit is again based on the generation that determined whether to fall of the signal of telecommunication from all sliceable fall detection carpets.
Preferably, described interface expanding element comprises: a plurality of subelements, each subelement comprise the 3rd interface and a plurality of second interface, wherein, and the corresponding connection of data wire that the data wire that each subelement the 3rd interface separately comprises and other subelements comprise.
Preferably, the corresponding connection of address wire that comprises of the address wire that comprises of each subelement the 3rd interface separately and other subelements.
Preferably, the read-write line and the reset line that comprise of each subelement the 3rd interface separately is connected with read-write line and the reset line that other subelements comprise.
Preferably, described interface expanding element also comprises: decoding unit, be connected with described detecting unit and described a plurality of subelement, and be used for selecting signal to decipher in order to select one from described a plurality of subelements to second of described detecting unit.
Preferably, described decoding unit comprises 3-8 decoder or 4-16 decoder.
Preferably, described subelement comprises 8255 chips.
Preferably, described detecting unit comprises single-chip microcomputer.
As mentioned above, fall detection system based on interface expansion of the present invention can be realized and being connected of a plurality of sliceable fall detection carpets based on the interface expanding element, the convenient user who needs to use a plurality of sliceable fall detection carpets thus, effectively reduce user's use cost, make the present invention can be widely used in places such as family, welfare home, hospital, can promote economic benefit of enterprises greatly.
Description of drawings
Fig. 1 is shown as the fall detection system structural representation based on the interface expansion of the present invention.
Fig. 2 is shown as the structural representation of the subelement that comprises based on the fall detection system of interface expansion of the present invention.
Fig. 3 is shown as the decoding unit connection diagram that comprises based on the fall detection system of interface expansion of the present invention.
The element numbers explanation
1 fall detection system
11 sliceable fall detection carpets
111 first interfaces
12 interface expanding elements
121 subelements
1,211 second interfaces
1212 the 3rd interfaces
122 decoding units
13 detecting units
131 the 4th interfaces
The specific embodiment
Below by particular specific embodiment explanation embodiments of the present invention, person skilled in the art scholar can understand other advantages of the present invention and effect easily by the disclosed content of this description.
See also Fig. 1 to Fig. 3.Notice, the appended graphic structure that illustrates of this description, ratio, size etc., equal contents in order to cooperate description to disclose only, understand and reading for person skilled in the art scholar, be not in order to limit the enforceable qualifications of the present invention, so technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, not influencing under the effect that the present invention can produce and the purpose that can reach, all should still drop on disclosed technology contents and get in the scope that can contain.
Fig. 1 is the fall detection system structural representation based on the interface expansion of the present invention.Described fall detection system 1 comprises: a plurality of sliceable fall detection carpet 11, interface expanding element 12 and detecting units 13.
Each sliceable fall detection carpet 11 all has first interface 111, when monitored people tramples on a sliceable fall detection carpet 11, this sliceable fall detection carpet 11 based on the zone of being trampled by the corresponding signal of telecommunication of described first interface, 111 outputs.
Preferably, sliceable fall detection carpet is called the sliceable fall detection carpet described in the Chinese patent application of " sliceable fall detection carpet " for another part of the applicant name.
Wherein, each sliceable fall detection carpet 11 can all be laid on same room, also can be that the sliceable fall detection carpet 11 of part is laid on same room, the sliceable fall detection carpet 11 of remainder is laid on another room, can also be that each sliceable fall detection carpet 11 is laid on a room etc. separately.
Described interface expanding element 12 has the 3rd interface 1212 and a plurality of second interface 1211, and wherein, each second interface 1211 connects first interface 111, in order to receive the signal of telecommunication from first interface 111.
As a kind of optimal way, described interface expanding element 12 comprises 8255 chips.
As another kind of optimal way, described interface expanding element 12 comprises a plurality of subelements 121.
As shown in Figure 2, each subelement 121 comprises the 3rd interface 1212 and a plurality of second interface 1211.Wherein, each the 3rd interface 1212 comprises data wire, address wire, read-write line and reset line.Preferably, subelement 121 includes but not limited to 8255 chips.Preferably, each the 3rd interface 1212 also comprises the chip selection signal line.
Described detecting unit 13 has the 4th interface 131.Wherein, described the 4th interface 131 connects described the 3rd interface 1212, be used for by the 4th interface 131 spread out of first select signal in case described interface expanding element 12 based on this selections signal select second interface 1211, and the signal of telecommunication exported of the sliceable fall detection carpet that will this second interface 1211 connects pass back, described detecting unit 13 is again based on the generation that determined whether to fall of the signal of telecommunication from all sliceable fall detection carpets.Preferably, described detecting unit 13 includes but not limited to single-chip microcomputer etc., and for example, model is the single-chip microcomputer of STC90C516RD+, and it comprises the 90C51 chip.
Particularly, when described interface expanding element 12 comprised 8255 chips, described the 4th interface 131 comprised address wire, and described first selects signal to comprise address signal.Be described detecting unit 13 by the address wire OPADD signal of described the 4th interface 131 so that described interface expanding element 12 is selected second interface based on this address signal.In addition, described the 4th interface 131 also comprises data wire, read-write line and the reset line that is connected with data wire, read-write line and the reset line of described interface expanding element 12 respectively.
Particularly, when described interface expanding element 12 comprised a plurality of subelement 121 such as 8255 chips, described the 4th interface 131 comprised chip selection signal line, address signal line, data wire, read-write line and reset line; Each subelement 121 the 3rd interface 1212 separately also comprises chip selection signal line, address wire, data wire, read-write line and reset line.
Preferably, after the data wire that each subelement 121 the 3rd interface 1212 separately comprises and the corresponding connection of data wire that other subelements 121 comprise, be connected with the data wire that described the 4th interface 131 comprises again.For example, the 3rd interface 1212 of each subelement has p1.0 to p1.7 totally 8 data wires, and then the data wire p1.0 of the 3rd interface 1212 of each subelement 121 connects the data wire P0.0 that connects the 90C51 chip behind the data wire p1.0 of the 3rd interface 1212 of other each subelements 121 more respectively, data wire p1.1 connects the data wire P0.1 that connects the 90C51 chip behind the data wire p1.1 of the 3rd interface 1212 of other each subelements 121 more respectively, data wire p1.7 connects the data wire P0.7 that connects the 90C51 chip behind the data wire p1.7 of the 3rd interface 1212 of other each subelements 121 more respectively.
Preferably, after the address wire that each subelement 121 the 3rd interface 1212 separately comprises and the corresponding connection of address wire that other subelements 121 comprise, be connected with the address wire that described the 4th interface 131 comprises again.For example, the 3rd interface 1212 of each subelement has p2.0 and p2.1 totally 2 address wires, and then the address wire p2.0 of the 3rd interface 1212 of each subelement 121 connects the address wire P2.1 that address wire p2.1 that the address wire P2.0, the address wire p2.1 that connect the 90C51 chip behind the address wire p2.0 of the 3rd interface 1212 of other each subelements 121 again connect the 3rd interface 1212 of other each subelements 121 respectively connects the 90C51 chip more respectively.
Preferably, behind the read-write line that each subelement 121 the 3rd interface 1212 separately comprises and reset line and the read-write line and the corresponding connection of reset line that other subelements 121 comprise, read-write line and the reset line that comprises with described the 4th interface 131 again.For example, behind the read-write line that each subelement 121 the 3rd interface 1212 separately comprises and reset line and the read-write line and the corresponding connection of reset line that other subelements 121 comprise, connect the conduct read-write line of 90C51 chip and the special purpose interface of reset line again.
Preferably, the chip selection signal line of each subelement 121 connects the silver that the 4th interface comprises and selects holding wire, for example, the pin P2.2～P2.7 of single-chip microcomputer is as the chip selection signal line, and then the chip selection signal line of a slice 8255 chips connects among the pin P2.2～P2.7 of single-chip microcomputer one; Thus, described first selects signal to comprise chip selection signal and address signal, be that each subelement 121 determines based on the chip selection signal of the chip selection signal line output of described the 4th interface 131 whether self is selected earlier, selecteed subelement 121 comes from self-contained second interface one of selection based on the address signal of the address wire output of described the 4th interface 131 more subsequently.
When the quantity of the subelement 121 that comprises when described interface expanding element 12 surpassed 6, described interface expanding element 12 comprised decoding unit 122, as shown in Figure 3.
Described decoding unit 122 is connected with described detecting unit 13 and described a plurality of subelement 121, is used for selecting signal to decipher in order to select one from described a plurality of subelements 121 to second of described detecting unit 13.Preferably, described second select signal to comprise chip selection signal.Preferably, described decoding unit 122 includes but not limited to 3-8 decoder, 4-16 decoder or 6-64 decoder etc.
For example, as shown in Figure 3, the input of described decoding unit 122 connects the chip selection signal line that described detecting unit 12 the 4th interface 121 comprises, the chip selection signal line that the 3rd interface 1212 of a subelement 121 of each outfan connection comprises, thus, described first selects signal to comprise that described second selects signal and address signal, described second selects signal to comprise chip selection signal, be that described decoding unit 122 is deciphered the chip selection signal of the chip selection signal line of described the 4th interface 131 earlier, and output decode results, each subelement 121 determines based on described decode results whether self is selected, subsequently, the address signal from the address wire of described the 4th interface 131 that the address wire that this selecteed subelement 121 comprises based on self the 3rd interface receives is selected one from self-contained second interface.
The work process of described fall detection system is as follows:
At first, described detecting unit 13 is by the reset line of the 4th interface 131, the reset line of the 3rd interface 1212 of described interface expanding element 12 sends reset signal to described interface expanding element 12, so that 8255 chip resets that described interface expanding element 12 comprises, pass through address wire and the chip selection signal line of the 4th interface 131 subsequently again, the described interface expanding element 12 of the address wire of the 3rd interface 1212 of described interface expanding element 12 and chip selection signal alignment sends the first selection information, so that 8255 chips that described interface expanding element 12 comprises determine based on the chip selection signal in the described first selection information whether self is selected, and selecteed 8255 chips are selected second interface 1211 based on the address signal in the described first selection information again, and read the signal of telecommunication of sliceable fall detection carpet 11 outputs that are connected with selected second interface 1211, and with the data wire of this signal of telecommunication by the 3rd interface 1212, the data wire of the 4th interface 131 is passed described detecting unit 13 back; Subsequently, described detecting unit 13 continues to send first and selects signal in order to obtain the signal of telecommunication from another sliceable fall detection carpet 11; Get access to the signal of telecommunication of all sliceable fall detection carpets 11 up to described detecting unit 13, then, described detecting unit 13 is determined the generation of whether falling in this room based on sliceable fall detection carpet 11 signal of telecommunication separately that belongs to same room again.
In sum, fall detection system based on interface expansion of the present invention can be realized and being connected of a plurality of sliceable fall detection carpets based on the interface expanding element, the convenient user who needs to use a plurality of sliceable fall detection carpets thus, effectively reduce user's use cost, make the present invention can be widely used in places such as family, welfare home, hospital, can promote economic benefit of enterprises greatly.So the present invention has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not is used for restriction the present invention.Any person skilled in the art scholar all can be under spirit of the present invention and category, and above-described embodiment is modified or changed.Therefore, have in the technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of finishing under disclosed spirit and the technological thought, must be contained by claim of the present invention.
Claims (8)
1. the fall detection system based on the interface expansion is characterized in that, described fall detection system based on the interface expansion comprises at least:
A plurality of sliceable fall detection carpets with first interface;
The interface expanding element has the 3rd interface and a plurality of second interface, and wherein, each second interface connects first interface; Detecting unit with the 4th interface, described the 4th interface connects the 3rd interface, be used for by the 4th interface spread out of first select signal in case described interface expanding element based on this selections signal select second interface, and the signal of telecommunication exported of the sliceable fall detection carpet that will this second interface connects pass back, described detecting unit is again based on the generation that determined whether to fall of the signal of telecommunication from all sliceable fall detection carpets.
2. the fall detection system based on interface expansion according to claim 1, it is characterized in that: described interface expanding element comprises:
A plurality of subelements, each subelement comprise the 3rd interface and a plurality of second interface, wherein, and the corresponding connection of data wire that the data wire that each subelement the 3rd interface separately comprises and other subelements comprise.
3. the fall detection system based on interface expansion according to claim 2 is characterized in that: the corresponding connection of address wire that the address wire that each subelement the 3rd interface separately comprises and other subelements comprise.
4. the fall detection system based on interface expansion according to claim 2, it is characterized in that: the read-write line that each subelement the 3rd interface separately comprises and reset line are connected with read-write line and the reset line that other subelements comprise.
5. the fall detection system based on interface expansion according to claim 2, it is characterized in that: described interface expanding element also comprises:
Decoding unit is connected with described detecting unit and described a plurality of subelement, is used for selecting signal to decipher in order to select one from described a plurality of subelements to second of described detecting unit.
6. the fall detection system based on interface expansion according to claim 5, it is characterized in that: described decoding unit comprises 3-8 decoder or 4-16 decoder.
7. the fall detection system based on interface expansion according to claim 2, it is characterized in that: described subelement comprises 8255 chips.
8. the fall detection system based on interface expansion according to claim 1, it is characterized in that: described detecting unit comprises single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012100255035A CN103239233A (en) | 2012-02-06 | 2012-02-06 | Fall detection system based on interface extension |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100255035A CN103239233A (en) | 2012-02-06 | 2012-02-06 | Fall detection system based on interface extension |
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| CN103239233A true CN103239233A (en) | 2013-08-14 |
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| CN2012100255035A Pending CN103239233A (en) | 2012-02-06 | 2012-02-06 | Fall detection system based on interface extension |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106444485A (en) * | 2016-08-31 | 2017-02-22 | 中车青岛四方机车车辆股份有限公司 | Device and method for detecting circuit |
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