Hard hat involving wireless data transmission

• US 20090199317A1
• Filed: 02/08/2008
• Published: 08/13/2009
• Est. Priority Date: 02/08/2008
• Status: Abandoned Application

• Current Assignee: Identec Solutions AG
• Original Assignee: Identec Solutions AG
• Inventors: Schwiers, Stefan, Feierle, Karl-Heinz
• Application Number:
  US12/028,036
• Publication Number:
  US 20090199317A1
• Time in Patent Office: Days
• US Class Current: 2/5
• CPC Class Codes: A42B 3/0433 Detecting, signalling or lighting devices

Abstract

The invention concerns a hard hat having wireless protection to monitor human measuring values, such as, temperature, pulse, moisture and other values which are recorded in the head section of a human and transmitted wirelessly to a stationary or mobile reception unit and which monitor the physical constitution of the hard hat user.

The invention is characterized by a device at which a hard hat is equipped with a transponder which, in turn, is data connected with several measuring sensors arranged in and at the hard hat. The transponder is also connected with an antenna located in the upper part of the hard hat. This antenna is able to transmit as omnidirectional wave the transmitting frequency transmitted by the transponder in a specific frequency range to a stationary or mobile transceiver located outside of the field.

In addition, the invention is characterized by a procedure to have wireless protection to monitor human measuring values.

Claims

1. Hard hat having wireless protection to monitor human measuring values, such as, temperature, pulse, moisture and other values which are recorded in the head section of a human and transmitted wirelessly to a stationary or mobile reception unit and which monitor the physical constitution of the hard hat user, characterized by the fact that the hard hat is equipped with a transponder which, in turn, is data connected to several measuring sensors, which are arranged inside and at the hard hat, and that the transponder is also connected to an antenna located in the upper part of the hard hat, which transmits as wireless radio wave in a specific frequency range the transmitting frequency transmitted by the transponder to a mobile or stationary transmit-receive unit arranged outside the field.

2. Hard hat according to claim 1, characterized by the fact that the antenna is designed as a circular transmitter and transmits an omnidirectional radio wave.

3. Hard hat according to claim 1, characterized by the fact that the antenna is designed as directional transmitter transmitting a radiated beam to the transmit-receive unit, at which the radiated beam transmits forward and backward at a range of between 60 and 120 degrees, allowing to determine the hard hat users direction of movement.

4. Hard hat according to one claim 1, characterized by the fact that the antenna transmits the transmitting frequency transmitted by the transponder over a field length of 100 m and a field width of 50 m to a mobile or stationary transmit-receive unit.

5. Hard hat according to claim 1, characterized by the fact that the frontal part of the player'"'"'s hard hat, preferably the upper part of the hard hat includes the transponder together with the antenna, at which the hard hat produces an omnidirectional propagation direction from the field to a manual scanner and/or GSM terminal.

6. Hard hat according to claim 1, characterized by the fact that a retrieving unit received the radio waves transmitted by the transponder by means of an antenna arranged at the retrieving unit, at which the antenna is designed as transmit antenna or transmit-receive antenna.

7. Hard hat according to claim 1, characterized by the fact that the retrieving unit is connected to a module which is designed as GSM module and transmits the data of the retrieving unit to a GSM network and subsequently to a GSM terminal.

8. Hard hat according to claim 1, characterized by the fact that the GSM module also has an Internet interface which transmits the data collected by the retrieving unit via the Internet by means of an Internet interface directly to the manual scanner, for example, a PDA and/or the GSM terminal.

9. Hard hat according to claim 1, characterized by the fact that the transmission of the GSM module to the GSM radio network takes place by means of a transmit-receive antenna.

10. Hard hat according to claim 1, characterized by the fact that several transponders transmit to the retrieving unit the respective data packet to various time slots of approximately 15 s±

0.5 s, at which each data packet has a width of 2.5 ms.

11. Hard hat according to claim 1, characterized by the fact that the data packets transmitted each have an ID number which assign at the retrieving unit (2) the transmitted data packets to the respective hard hat.

12. Hard hat according to claim 1, characterized by the fact that the data packets are transmitted as frequency modulated signals, guaranteeing disruption-unsusceptible transmission.

13. Hard hat according to claim 1, characterized by the fact that the retrieving unit transmits a specific transmitting signal which activates the respective hard hat, reads the stored data and transmits this data to the retrieving unit via a radio interface.

14. Hard hat according to claim 1, characterized by the fact that the transponder is located in a housing together with a battery and other components, having an interface at the side of the housing to connect the temperature sensor.

15. Hard hat according to claim 1, characterized by the fact that the antenna arranged at or in the hard hat is designed as a band having a length of 60 mm and spherical wave propagation extending to all directions.

16. Hard hat according to claim 1, characterized by the fact that the antenna located in the upper part of the hard hat forms a horizontally extending spherical wave having wave propagation, whereby the hard hat prevents disruption of the wave propagation regardless of the inclination of the hard hat and its angle to the ground.

17. Hard hat according to claim 1, characterized by the fact that the temperature sensor is designed as a thermistor which, preferably, in direction of the arrow, is directed toward the forehead of a hard hat user and records the skin temperature at the forehead of the hard hat user.

18. Hard hat according to claim 1, characterized by the fact that the temperature sensor is connected to the transponder via a connection cable, at which the entire transponder unit is positioned between the outer shell and the padding as well as the inside shell of the hard hat, protecting the measuring device against impacts and other damages and allows for easy exchange of the temperature sensor.

19. Hard hat according to claim 1, characterized by the fact that a thermistor or IR diode arranged in the opening area of the ear makes it possible to measure the core temperature of the hard hat user with considerably more precision than would be possible by means of the temperature sensor directed in measuring direction toward the forehead of the hard hat user.

20. Hard hat according to claim 1, characterized by the fact that, in the upper part of the hard hat, two measuring pads are located which perform the measurement of the skin temperature by means of resistance measurement between the measuring pads, at which the measuring pads are attached to the skin of the hard hat user and the recorded measuring value indicates a moisture value of the skin of the hard hat user.

21. Hard hat according to claim 1, characterized by the fact that the hard hat, at the lateral temple area, has an ultra sound sensor which basically records pulse measurements which are converted and transmitted in the transponder.

22. Hard hat according to claim 1, characterized by the fact that the temperature sensor is located in a plastic housing, the front side of which is covered by a sensor membrane and which has a casing at its rear side consisting of thermically conductible material, in which the temperature sensor designed as thermistor casing is imbedded and connected in a heat-conductible manner to the casing which, in turn, is connected in a heat-conductible manner to the sensor membrane.

23. Hard hat according to claim 1, characterized by the fact that the antenna is designed as transmitting antenna or as a transmit-receive antenna.

26. Hard hat to be used on the head of a person according to claim 1, characterized by the fact that it is suitable to perform wireless transmission of physiological values of the hard hat user, for example, skin temperature, skin moisture, pulsation.

27. Hard hat to be used on the head of a person according to claim 1, characterized by the fact that it is suitable for wireless transmission of physical values, for example, shock effects on the hard hat.

24. Procedure for wireless protection to monitor human measuring values, such as, temperature, pulse, moisture, shock effects and other values which are recorded in the head section of a human and transmitted wirelessly to a stationary or mobile reception unit and which monitor the physical constitution of the hard hat user, characterized by the fact that a hard hat having several measuring sensors is data connected to at least one transponder located in or at the hard hat, at which the transponder forms a connection with an antenna located in the upper part of the hard hat, which transmits as radio wave in a specific frequency range the transmitting frequency transmitted by the transponder to a mobile or stationary transmit-receive unit arranged outside the field.

25. (canceled)