# US 2018/0021207 A1 · Method, device and helmet for guiding the blind > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0021207 A1 - Document ID: US20180021207A1 - Status: Published application - Kind: A1 - Application number: 15/722,731 - Filed: 2017-10-02 - Published: 2018-01-25 - Earliest claimed: 2015-11-16 - Assignees: Cloudminds (Shenzhen) Robotics Systems Co., Ltd. - Applicants: Cloudminds (Shenzhen) Robotics Systems Co., Ltd. - Inventors: Zeyuan XU; Bin WANG - Web page: https://patentgrep.com/patent/US20180021207A1 ## CPC - A61H 3/061: {with electronic detecting or guiding means} - A42B 3/30: Mounting radio sets or communication systems - A61F 9/08: Devices or methods enabling eye-patients to replace direct visual perception by another kind of perception - A61H 3/06: Walking aids for blind persons (replacing direct visual perception by another kind of perception A61F9/08) - A61H 23/0263: {using rotating unbalanced masses} - G01C 21/3652: {Guidance using non-audiovisual output, e.g. tactile, haptic or electric stimuli} - G09B 21/003: {using tactile presentation of the information, e.g. Braille displays} - A61H 2003/063: {with tactile perception} - A61H 2201/0165: Damping, vibration related features - A61H 2201/1604: Head - A61H 2201/1607: Holding means therefor - A61H 2201/5007: computer controlled - 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) - A42B: HATS; HEAD COVERINGS (headbands A41D20/00; head-scarves A41D23/00) - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S) - G09B: EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS (devices for psychotechnics or for testing reaction times A61B5/16; games, sports, amusements A63; projectors, projector screens G03B) ## Abstract A method for guiding the blind is disclosed. The method includes: determining a target direction; and controlling a mechanical device to shift its center of gravity toward the target direction according to the target direction; wherein the mechanical device comprises a balance weight, a connecting rod, and a rotating axis, the connecting rod is connected to the rotating axis, and the balance weight is located on the connecting rod. ## Claims ### Claim at position 1 1-20. (canceled) ### Claim 21 A method for guiding the blind, comprising: determining a target direction; and controlling a mechanical device to shift its center of gravity toward the target direction according to the target direction, wherein the mechanical device comprises a balance weight, a connecting rod, and a rotating axis, the connecting rod is connected to the rotating axis, and the balance weight is located on the connecting rod. ### Claim 22 (depends on 21) The method according to claim 21, wherein one end of the connecting rod is connected to the rotating axis, and the controlling a mechanical device to shift its center of gravity comprises controlling orientation of the connecting rod that centers on the rotating axis. ### Claim 23 (depends on 22) The method according to claim 22, wherein the controlling orientation of the connecting rod that centers on the rotating axis is controlling the connecting rod to shift toward the target direction in a preset angle range. ### Claim 24 (depends on 21) The method according to claim 21, wherein center of the connecting rod is connected to the rotating axis, and said controlling a mechanical device to shift its center of gravity comprises controlling the balance weight to be located on one end of the connecting rod by the center. ### Claim 25 (depends on 22) The method according to claim 22, wherein further comprising: determining a current advancing direction of the user; controlling a distance from the balance weight to a joint between the connecting rod and the rotating axis according to relation between the current advancing direction of the user and the target direction. ### Claim 26 (depends on 25) The method according to claim 25, wherein the controlling a distance from the balance weight to a joint between the connecting rod and the rotating axis according to relation between the current advancing direction of the user and the target direction comprises: controlling the balance weight to slide to the joint between the connecting rod and the rotating axis when the current advancing direction of the user is consistent with the target direction. ### Claim 27 A device for guiding the blind, comprising: a first determining module for determining a target direction; and a first controlling module for controlling a mechanical device to shift its center of gravity toward the target direction according to the target direction, wherein the mechanical device comprises a balance weight, a connecting rod, and a rotating axis, the connecting rod is connected to the rotating axis, and the balance weight is located on the connecting rod. ### Claim 28 (depends on 27) The device according to claim 27, wherein one end of the connecting rod is connected to the rotating axis, and the first controlling module is used for changing center of gravity deviation of the mechanical device by controlling orientation of the connecting rod that centers around the rotating axis. ### Claim 29 (depends on 28) The device according to claim 28, wherein the first controlling module is used for controlling the connecting rod that centers around the rotating axis to shift toward the target direction in a preset angle range. ### Claim 30 (depends on 27) The device according to claim 27, wherein a center of the connecting rod is connected to the rotating axis, and the first controlling module is used for changing center of gravity deviation of the mechanical device by controlling the balance weight to be located on one end of the connecting rod by the center. ### Claim 31 (depends on 28) The device according to claim 28, wherein further comprising: a second determining module for determining a current advancing direction of the user; a second controlling module for controlling a distance from the balance weight to a joint between the connecting rod and the rotating axis according to relation between the current advancing direction of the user and the target direction. ### Claim 32 (depends on 31) The device according to claim 31, wherein the second controlling module is used for controlling the balance weight to slide to the joint between the connecting rod and the rotating axis when the current advancing direction of the user is consistent with the target direction. ### Claim 33 A blind guiding helmet comprising: a first determining module for determining a target direction; and a first controlling module for controlling a mechanical device to shift its center of gravity toward the target direction according to the target direction, wherein the mechanical device comprises a balance weight, a connecting rod, and a rotating axis, the connecting rod is connected to the rotating axis, and the balance weight is located on the connecting rod. ### Claim 34 (depends on 33) The blind guiding helmet according to claim 33, wherein one end of the connecting rod is connected to the rotating axis, and the first controlling module is used for changing center of gravity deviation of the mechanical device by controlling orientation of the connecting rod that centers around the rotating axis. ### Claim 35 (depends on 34) The blind guiding helmet according to claim 34, wherein the first controlling module is used for controlling the connecting rod that centers around the rotating axis to shift toward the target direction in a preset angle range. ### Claim 36 (depends on 33) The blind guiding helmet according to claim 33, wherein a center of the connecting rod is connected to the rotating axis, and the first controlling module is used for changing center of gravity deviation of the mechanical device by controlling the balance weight to be located on one end of the connecting rod by the center. ### Claim 37 (depends on 36) The blind guiding helmet according to claim 36, wherein further comprising: a second determining module for determining a current advancing direction of the user; and a second controlling module for controlling a distance from the balance weight to a joint between the connecting rod and the rotating axis according to relation between the current advancing direction of the user and the target direction. ### Claim 38 (depends on 37) The blind guiding helmet according to claim 37, wherein the second controlling module is used for controlling the balance weight to slide to the joint between the connecting rod and the rotating axis when the current advancing direction of the user is consistent with the target direction.