Gravity sensor and control system

Abstract

The invention discloses a gravity sensor and a control system, the control system comprises a plurality of gravity sensors, a digital transmitter and a control terminal, and the gravity sensors are connected with the control terminal through the digital transmitter. The gravity sensor comprises a base, an upper shell, a sensor body and an elastic piece. The upper shell is arranged above the base, the top of the sensor body is fixedly connected with a pressed object, and the base is fixedly connected with an application environment. An elastic piece through hole is formed in the middle of the elastic piece, the sensor body is arranged on the inner side of the upper shell and above the elastic piece, the sensor contact head at the bottom of the sensor body is arranged in the elastic piece through hole, when a pressed object is pressed, the sensor contact head is in contact with the top of the base, and therefore control information is output; and the sensor body is reset through the elastic piece. And the control terminal judges the triggering condition according to the control information uploaded by the gravity induction sensor.

Description

Technical Field

[0001] The present invention relates to the field of sensors, and in particular to a gravity sensing sensor and a control system. Background Art

[0002] In addition to traditional infrared sensors, cameras, etc., existing security systems also include installing pressure sensors at the bottom of floor tiles in key locations, and connecting the pressure sensors to the control terminal through digital transmitters. The control terminal uses the information fed back by the pressure sensors to identify whether someone is passing by the pressurized object.

[0003] For this usage scenario, since it is set under the pressure object, in order to make the visiting customers feel nothing and to meet the needs of anti-theft, the movable stroke of the pressure object is relatively small. The overall structure of the existing design is easily affected by thermal expansion and contraction, resulting in false alarms. In addition, in the existing design, since each group of pressure objects is supported by multiple gravity sensors, it is necessary to level the many supporting points of the pressure objects to meet the usage needs, otherwise it is easy to cause false alarms. Therefore, there is a need for a gravity sensor and control system that can adjust the height to make the heights of multiple sensors consistent and overcome the influence of thermal expansion and contraction, so that the installation is simple, the alarm is accurate, and there is no sense of daily use. Summary of the invention

[0004] The main purpose of the present invention is to provide a gravity sensing sensor and control system that can adjust the height of the sensor so that it can be installed without leveling the surface of the application environment, can overcome the influence of thermal expansion and contraction, and can accurately alarm and be non-sensitive in daily use.

[0005] The present invention provides a gravity sensing sensor, comprising a base, an upper shell, a sensor body and an elastic member;

[0006] The upper shell is arranged above the base, the top of the sensor body is fixedly connected to the pressure object, and the base is fixedly connected to the application environment;

[0007] An elastic member through hole is arranged in the middle of the elastic member, the sensor body is arranged inside the upper shell and above the elastic member, the sensor contact head at the bottom of the sensor body is arranged in the elastic member through hole, when the pressed object is pressed, the sensor contact head contacts the top of the base, thereby outputting control information, and after the pressing is completed, the sensor body is reset through the elastic member;

[0008] The sensor body is limitedly arranged in the upper shell, and the elastic member is arranged so that a gap is provided between the bottom of the sensor body and the top of the base to overcome the influence of thermal expansion and contraction.

[0009] Preferably, the base includes an upper connecting seat and a lower connecting seat, the upper connecting seat and the lower connecting seat are connected by a threaded connection, the top of the upper connecting seat is fixedly connected to the upper shell, and the bottom of the lower connecting seat is fixedly connected to the ground, and the overall height of the gravity sensing sensor can be adjusted by adjusting the relative distance between the upper connecting seat and the lower connecting seat.

[0010] Preferably, the elastic member is an elastic rubber pad, and the elastic rubber pad is ring-shaped.

[0011] Preferably, a sensor connection block is provided at the bottom of the sensor body extending outward and is limitedly disposed in the upper shell by the sensor connection block.

[0012] A control system includes a plurality of gravity sensors, a digital transmitter, a switch and a control terminal;

[0013] At least one gravity sensor forms a sensor group and is arranged under the pressure object. The gravity sensors in the same sensor group are connected to the same digital transmitter. A plurality of digital transmitters are connected in series to form a digital transmitter group. The digital transmitter at the end of the digital transmitter group is connected to the switch. The digital transmitter at the front end of the digital transmitter group can sequentially transmit the obtained control information to the switch through the digital transmitter connected thereto.

[0014] The switch is connected to the control terminal, and the control terminal obtains the control signal from the switch and translates the control signal into corresponding information to the user.

[0015] The beneficial effects of the gravity sensing sensor and control system of the present invention are:

[0016] 1. By setting the elastic rubber pad, there is a gap between the bottom of the sensor body and the top of the base that can overcome the influence of thermal expansion and contraction, thereby overcoming the influence of thermal expansion and contraction on the gravity sensing sensor.

[0017] 2. By setting a height-adjustable base, the pressure object can be leveled and installed by relying on the gravity sensor itself without leveling the surface of the application environment, which is convenient for installation and use in actual use.

[0018] 3. In the prior art, each gravity sensing sensor needs to be connected to a digital transmitter and then connected to a switch or a control terminal through a wire, which makes the wiring very complicated. However, this patent sets up multiple digital transmitters, and the digital transmitters are connected in series to form a digital transmitter group. The gravity sensing sensor is connected to the digital transmitter, and the digital transmitter at the end of the digital transmitter group is connected to the switch. The front-end digital transmitter in the digital transmitter group can pass the obtained control information to the switch in sequence through the digital transmitter connected to it, thereby greatly reducing the complexity of wiring and improving the utilization rate of space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the gravity sensing sensor and the gravity sensing sensor of the control system of the present invention;

[0020] Figure 2 It is a cross-sectional view of the gravity sensor and the control system of the present invention at AA;

[0021] Figure 3 It is a structural block diagram of the control system of the gravity sensing sensor and control system of the present invention;

[0022] Numbers in the figure: 1. gravity sensor, 2. digital transmitter, 3. switch, 4. control terminal, 11. base, 12. upper shell, 13. sensor body, 14. elastic rubber pad, 111. lower connecting seat, 112. upper connecting seat.

[0023] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0025] Reference Figure 1 to Figure 2 , an embodiment of the gravity sensing sensor of the present invention is proposed:

[0026] A gravity sensing sensor 1 comprises a base 11, an upper shell 12, a sensor body 13 and an elastic member. The elastic member is an elastic rubber pad 14, and the elastic rubber pad 14 is ring-shaped.

[0027] The base 11 includes an upper connecting seat 112 and a lower connecting seat 111. The upper connecting seat 112 and the lower connecting seat 111 are connected by threaded connection. The top of the upper connecting seat 112 is fixedly connected to the upper shell 12, and the bottom of the lower connecting seat 111 is fixedly connected to the ground. By rotating the upper connecting seat 112, the relative distance between the upper connecting seat 112 and the lower connecting seat 111 can be adjusted, thereby adjusting the overall height of the gravity sensing sensor 1.

[0028] 4. The upper shell 12 is arranged above the upper connecting seat 112, the elastic rubber pad 14 is arranged in the middle of the top of the upper connecting seat 112, an elastic member through hole is arranged in the middle of the elastic rubber pad 14, the sensor body 13 is arranged on the inner side of the upper shell 12 and arranged above the elastic rubber pad 14, and the sensor contact head at the bottom of the sensor body 13 is arranged in the elastic member through hole. The top of the sensor body 13 is fixedly connected to the floor tile. By arranging the elastic rubber pad 14, there is a gap between the bottom of the sensor body 13 and the top of the base 11 that can overcome the influence of thermal expansion and contraction, thereby overcoming the influence of thermal expansion and contraction on the gravity sensing sensor 1. A sensor connection block is extended outward from the bottom of the sensor body 13 and is limited in the upper shell 12 by the sensor connection block.

[0029] When in use, a plurality of gravity sensors 1 are arranged at the bottom of the floor tile, generally four in number, and the relative distance between the upper connecting seat 112 and the lower connecting seat 111 can be adjusted by rotating the upper connecting seat 112, so that the height of the floor tile can be leveled without leveling the ground. When an outsider steps on the floor tile, the sensor contact head contacts the top of the base 11, thereby outputting a control signal, and after the pressing is completed, the sensor body 13 is reset through the elastic rubber pad.

[0030] Reference Figures 1 to 3 , an embodiment of the control system of the present invention is proposed:

[0031] A control system includes a plurality of gravity sensors 1, a digital transmitter 2, a switch 3 and a control terminal 4.

[0032] The gravity sensor comprises a base 11, an upper shell 12, a sensor body 13 and an elastic member. The elastic member is an elastic rubber pad 14, and the elastic rubber pad 14 is ring-shaped.

[0033] The base 11 includes an upper connecting seat 112 and a lower connecting seat 111. The upper connecting seat 112 and the lower connecting seat 111 are connected by threaded connection. The top of the upper connecting seat 112 is fixedly connected to the upper shell 12, and the bottom of the lower connecting seat 111 is fixedly connected to the ground. By rotating the upper connecting seat 112, the relative distance between the upper connecting seat 112 and the lower connecting seat 111 can be adjusted, thereby adjusting the overall height of the gravity sensing sensor 1.

[0034] The upper shell 12 is arranged above the upper connecting seat 112, the elastic rubber pad 14 is arranged in the middle of the top of the upper connecting seat 112, and an elastic member through hole is arranged in the middle of the elastic rubber pad 14. The sensor body 13 is arranged on the inner side of the upper shell 12 and above the elastic rubber pad 14, and the sensor contact head at the bottom of the sensor body 13 is arranged in the elastic member through hole. The top of the sensor body 13 is fixedly connected to the floor tile. By arranging the elastic rubber pad 14, there is a gap between the bottom of the sensor body 13 and the top of the base 11 that can overcome the influence of thermal expansion and contraction, thereby overcoming the influence of thermal expansion and contraction on the gravity sensing sensor 1. A sensor connection block is extended outward from the bottom of the sensor body 13 and is limited in the upper shell 12 by the sensor connection block.

[0035] Four gravity sensors 1 form a sensor group and are set under the floor tiles. In actual use, according to the size of the floor tiles, it can be changed to a group of six or nine gravity sensors 1 as needed. The gravity sensors 1 in the same sensor group are connected to the same digital transmitter 2. Multiple digital transmitters 2 are connected in series to form a digital transmitter group. The digital transmitter 2 at the end of the digital transmitter group is connected to the switch 3. The digital transmitter 2 at the front end of the digital transmitter group can sequentially transmit the obtained control information to the switch 3 through the digital transmitter 2 connected thereto. The switch 3 is connected to the control terminal 4, and the control terminal 4 obtains the control signal from the switch 3 and relays the control signal into corresponding information to the user.

[0036] In actual use, the gravity sensor 1 will get an initial weight value. In actual measurement, when the sensor contact head touches the top of the base 11, the more it retreats, the greater the gravity. At this time, the output value will also be greater. When the output value exceeds the set alarm value, an alarm will be triggered. The initial weight value is not fixed. The initial weight value will always be replaced by the measured value of the last measurement time. Through such a design, it can be applied in outdoor environments such as courtyards. Long-term and slow changes such as plant production will not affect the accuracy of the gravity sensor 1.

[0037] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gravity sensor, characterized in that: It includes a base, an upper shell, a sensor body and an elastic member; The upper shell is arranged above the base, the top of the sensor body is fixedly connected to the pressure object, and the base is fixedly connected to the application environment; An elastic member through hole is arranged in the middle of the elastic member, the sensor body is arranged inside the upper shell and above the elastic member, the sensor contact head at the bottom of the sensor body is arranged in the elastic member through hole, when the pressed object is pressed, the sensor contact head contacts the top of the base, thereby outputting control information, and after the pressing is completed, the sensor body is reset through the elastic member; The sensor body is limitedly arranged in the upper shell, and the elastic member is arranged so that a gap is provided between the bottom of the sensor body and the top of the base to overcome the influence of thermal expansion and contraction.

2. The gravity sensor according to claim 1, characterized in that: The base includes an upper connecting seat and a lower connecting seat, the upper connecting seat and the lower connecting seat are connected by a threaded connection, the top of the upper connecting seat is fixedly connected to the upper shell, and the bottom of the lower connecting seat is fixedly connected to the ground, and the overall height of the gravity sensing sensor can be adjusted by adjusting the relative distance between the upper connecting seat and the lower connecting seat.

3. The gravity sensor according to claim 1, characterized in that: The elastic member is an elastic rubber pad, and the elastic rubber pad is ring-shaped.

4. The gravity sensor according to claim 1, characterized in that: A sensor connection block is provided at the bottom of the sensor body extending outward and is limitedly disposed in the upper shell by the sensor connection block.

5. A control system based on the gravity sensor according to claim 1, characterized in that: It includes multiple gravity sensors, digital transmitters, switches and control terminals; At least one gravity sensor forms a sensor group and is arranged under the pressure object. The gravity sensors in the same sensor group are connected to the same digital transmitter. A plurality of digital transmitters are connected in series to form a digital transmitter group. The digital transmitter at the end of the digital transmitter group is connected to the switch. The digital transmitter at the front end of the digital transmitter group can sequentially transmit the obtained control information to the switch through the digital transmitter connected thereto. The switch is connected to the control terminal, and the control terminal obtains the control signal from the switch and translates the control signal into corresponding information to the user.

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