# US 2018/0321095 A1 · Health device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0321095 A1 - Document ID: US20180321095A1 - Status: Published application - Kind: A1 - Application number: 15/689,689 - Filed: 2017-08-29 - Published: 2018-11-08 - Earliest claimed: 2017-05-04 - Assignees: Hon Hai Precision Industry Co., Ltd. - Applicants: Hon Hai Precision Industry Co., Ltd. - Inventors: CHIEN-WEN WANG - Web page: https://patentgrep.com/patent/US20180321095A1 ## CPC - G01L 1/106: {Constructional details} - G01L 1/18: using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material - G01L 19/0092: {Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature (G01L9/025, G01L9/045, G01L9/065, G01L9/085, G01L9/105, G01L9/125, G01L19/02, G01L19/04 take precedence; measuring two or more variable G01D21/02; temperature sensors with pressure compensation G01K1/26)} - A61H 2201/1207: with electric or magnetic drive - A61H 2201/5071: Pressure sensors - G01L: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G) - A61H: PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY (electrotherapy, magnetotherapy, radiation therapy or ultrasound therapy A61N) ## Abstract A health device is also provided. The health device comprises a health device body and a pressure sensing system. The pressure sensing system is located on the health device body. The pressure sensing system comprises a plurality of pressure sensors, a reminder device a battery system, and a main circuit board. The plurality of pressure sensors is spaced from one another. The plurality of pressure sensors, the reminder device, and the battery system are electrically connected to the main circuit board. ## Claims ### Claim 1 A health device comprising: a health device body; and a pressure sensing system located on the health device body; wherein the pressure sensing system comprises: a plurality of pressure sensors spaced from each other; a reminder device; a battery system; and a main circuit board electrically connected with the plurality of pressure sensors, the reminder device, and the battery system. ### Claim 2 (depends on 1) The health device of claim 1, wherein at least one of the plurality of pressure sensors is a flexible piezoresistive film sensor. ### Claim 3 (depends on 2) The health device of claim 2, wherein at least one of the flexible piezoresistive film sensors comprises a polyethylene terephthalate film and a polymer composite material coating on a surface of the polyethylene terephthalate film. ### Claim 4 (depends on 1) The health device of claim 1, wherein at least one of the plurality of pressure sensors is located on an outer surface of the health device body. ### Claim 5 (depends on 1) The health device of claim 1, wherein at least one of the plurality of pressure sensors is embedded in the health device body. ### Claim 6 (depends on 1) The health device of claim 1, wherein the plurality of pressure sensors is arranged symmetrically. ### Claim 7 (depends on 1) The health device of claim 1, wherein the pressure sensing system further comprises a wireless transmission unit. ### Claim 8 (depends on 7) The health device of claim 7, wherein the main circuit board comprises a micro controller; a measured pressure signal is converted into an analog voltage signal and transmitted to the micro controller by the plurality of pressure sensors; the analog voltage signal is calculated by the micro controller to determine a user's posture; and the user's posture is uploaded to a cloud by the wireless transmission unit. ### Claim 9 (depends on 7) The health device of claim 7, wherein a measured pressure signal is converted into an analog voltage signal by the plurality of pressure sensors; the analog voltage signal is uploaded to a cloud by the wireless transmission unit; and the analog voltage signal is calculated in the cloud to determine a user's posture. ### Claim 10 (depends on 1) The health device of claim 1, wherein a distance between adjacent pressure sensors is in a range from about 5 centimeters to about 35 centimeters. ### Claim 11 (depends on 1) The health device of claim 1, wherein at least one of the plurality of pressure sensors is circular, and a diameter of at least one of the plurality of pressure sensor is ranged from about 0.2 inches to about 2 inches. ### Claim 12 (depends on 1) The health device of claim 1, wherein at least one of the plurality of pressure sensors is square, and a side length of the at least one of the plurality of pressure sensors is ranged from about 0.2 inches to about 2 inches. ### Claim 13 (depends on 1) The health device of claim 1, wherein the main circuit board further comprises a memory integrated circuit, a charging module, and a multiplexer. ### Claim 14 A health device comprising: a chair body comprising a seat and a seat back; and a pressure sensing system located on the chair body, wherein the pressure sensing system comprises: a first plurality of pressure sensors embedded in the seat and spaced from each other; a second plurality of pressure sensors embedded in the seat back and spaced from each other; a reminder device; a battery system; and a main circuit board electrically connected with the plurality of pressure sensors, the reminder device, and the battery system. ### Claim 15 (depends on 14) The health device of claim 14, wherein the pressure sensing system further comprises a wireless transmission unit. ### Claim 16 (depends on 14) The health device of claim 14, wherein the first plurality of pressure sensors is arranged symmetrically. ### Claim 17 (depends on 14) The health device of claim 14, wherein the second plurality of pressure sensors is arranged symmetrically.