CN216309273U - Temperature measurement system and wearable temperature measuring device - Google Patents
Temperature measurement system and wearable temperature measuring device Download PDFInfo
- Publication number
- CN216309273U CN216309273U CN202122842532.8U CN202122842532U CN216309273U CN 216309273 U CN216309273 U CN 216309273U CN 202122842532 U CN202122842532 U CN 202122842532U CN 216309273 U CN216309273 U CN 216309273U
- Authority
- CN
- China
- Prior art keywords
- temperature
- module
- power supply
- signal transmission
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a temperature measurement system and a wearable temperature measurement device. The temperature measurement system includes: the device comprises a power supply module, an electrostatic protection circuit, a temperature detection module and a signal transmission module; the temperature detection module is used for detecting body temperature and acquiring body temperature data; the signal transmission module is connected with the temperature detection module; the power supply module is connected with the temperature detection module and the signal transmission module; the electrostatic protection circuit is connected with the power supply module, the signal transmission module and the temperature detection module; the power supply module comprises a temperature difference power generation chip, a capacitor, a boosting and monitoring chip and a low-dropout linear voltage regulator; one end of the capacitor is connected with the temperature difference power generation chip, the other end of the capacitor is connected with the input end of the boosting and monitoring chip, and the output end of the boosting and monitoring chip is connected with the low-dropout linear voltage regulator. The wearable temperature measuring device solves the problems of stable power supply under the condition of no external power supply, electrostatic damage during the contact process of the wearable temperature measuring device and a human body and sweat stain on the surface of the belt during the attaching process.
Description
Technical Field
The utility model relates to the technical field of integrated circuits and intelligent wearable detection, in particular to a temperature measurement system and a wearable temperature measurement device.
Background
The body temperature detection is one of important methods for judging and finding suspected cases of new coronary pneumonia, manual temperature measurement is time-consuming and labor-consuming, individuals cannot be detected in real time, temperature measuring personnel frequently contact with tested persons, the risk of disease transmission is increased, the problem can be effectively solved by using an intelligent wearable temperature measuring device, most of intelligent wearable temperature measuring devices need an external power supply for supplying power, and a power supply battery needs to be replaced after long-time use, so that the product cost is increased, and the waste battery can cause environmental pollution; and solar energy is adopted for direct power supply, and the solution without battery power supply has poor stability.
Besides the power supply problem, the wearable equipment is directly contacted with the human body and air, and the static problem is serious. Instantaneous high voltage impact can not only cause the interference to the power generation chip output, leads to the power supply trouble, can produce the damage to coupling capacitance even voltage regulator device when serious, only relies on chip self electrostatic protection structure and protective housing to be difficult to guarantee product reliability.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a temperature measuring system and a wearable temperature measuring device, which solve the problems of stable power supply under the condition of no need of external power supply and electrostatic damage caused by the wearable equipment in the process of contacting with a human body; wearable temperature measuring device has still further solved attached in-process belt surface and has appeared sweat stain problem.
In a first aspect, an embodiment of the present invention provides a temperature measurement system, including: the device comprises a power supply module, an electrostatic protection circuit, a temperature detection module and a signal transmission module; the temperature detection module is used for detecting body temperature and acquiring body temperature data;
the signal transmission module is connected with the temperature detection module and used for transmitting the body temperature data to a user terminal; the power supply module is respectively connected with the temperature detection module and the signal transmission module; the electrostatic protection circuit is connected with the power supply module, the signal transmission module and the temperature detection module;
the power supply module comprises a temperature difference power generation chip, a capacitor, a boosting and monitoring chip and a low-dropout linear voltage regulator; one end of the capacitor is connected with the temperature difference power generation chip, the other end of the capacitor is connected with the input end of the boosting and monitoring chip, and the output end of the boosting and monitoring chip is connected with the low-dropout linear voltage regulator;
the electrostatic protection circuit is a TVS diode array.
The temperature measurement system solves the problem of stable power supply under the condition of no external power supply by arranging the temperature difference power generation chip; the electrostatic damage problem is solved by adding an electrostatic protection circuit and a boosting and monitoring circuit.
As an optional implementation manner, the signal transmission module is configured to wirelessly transmit the body temperature data detected by the temperature detection module to the user terminal.
As an optional implementation manner, the signal transmission module includes a bluetooth module, and/or a ZigBee wireless transmission chip, and/or a WiFi chip.
As an optional implementation manner, a radio frequency switch is disposed between the thermoelectric generation chip and the capacitor.
In a first aspect, an embodiment of the present invention provides a wearable temperature measurement device, including: a housing and a connecting band;
the connecting band is used for fixing the shell on the surface of the skin of a human body, and the temperature measuring system in the first aspect is arranged in the shell;
the thermoelectric generation chip in the power supply module is arranged at the bottom of the shell and is suitable for contacting with the skin of a human body through the bottom of the shell; the temperature detection module is embedded in the inner wall of the bottom of the shell; the signal transmission module is fixedly connected to the inner wall of the top of the shell.
As an optional implementation mode, the connecting belt comprises a first connecting belt and a second connecting belt which are respectively connected with two sides of the temperature measuring device shell.
As an alternative embodiment, the connection tape includes a protection layer, a waterproof layer, and an adhesive layer; the adhesive layer is suitable for being attached or adhered to human skin, the waterproof layer is far away from the human skin, and the protective layer is located between the waterproof layer and the adhesive layer.
As an optional embodiment, the connecting belt is provided with air holes, and the air holes penetrate through the connecting belt.
As an alternative embodiment, the longitudinal section of the vent is isosceles trapezoid.
As an alternative embodiment, the opening area of each vent hole on the upper surface of the waterproof layer is smaller than that on the lower surface of the adhesive layer.
Compared with the prior art, the temperature measurement system and the wearable temperature measurement device provided by the utility model have the following beneficial effects:
1. this temperature measurement system and wearable temperature measuring device through with thermoelectric generation chip and human skin surface contact, utilizes human body surface temperature between 36 ℃ -37 ℃, if certain difference in temperature exists with the ambient temperature of locating, then thermoelectric generation chip begins to generate electricity in order to carry out real-time power supply to temperature sensor and signal transmission module, realizes not needing outside battery to supply power to temperature detection module and signal transmission module.
2. The electrostatic protection circuit can effectively improve the electrostatic protection capability of the device, reduce the damage of static electricity to modules in the device and prolong the service life of products. The voltage boosting and monitoring chip can detect the working state of the temperature difference power generation chip, stably boosts the output voltage, and then steps down the voltage by the voltage stabilizer to provide stable power supply for subsequent circuit systems such as a CPU (central processing unit).
3. The wearable temperature measuring device is adhered to the skin surface of a user through the connecting belt, the use is convenient, the size is small, and meanwhile, the connecting belt is provided with the air holes to prevent the sweat stain on the surface of the belt; especially, the longitudinal section through with the bleeder vent sets up to isosceles trapezoid shape, has further improved heat radiating area, has effectively prevented the condition that sweat stain appears in attached in-process belt surface, has ensured the fastness when the device is attached.
Drawings
FIG. 1 is a block diagram of a thermometry system provided by the present invention;
FIG. 2 is a schematic structural diagram of a wearable temperature measuring device according to the present invention;
FIG. 3 is a schematic front plan view of a wearable temperature measuring device according to the present invention;
FIG. 4 is a structural distribution diagram of a passivation layer according to the present invention;
FIG. 5 is a side view of the internal package of the wearable thermometric device of the present invention;
FIG. 6 is a top view of the internal package of the wearable temperature measurement device provided by the present invention;
in the figure: 1-a temperature measuring device shell, 2-a connecting belt, 21-a protective layer, 22-a waterproof layer, 23-a bonding layer, 24-an air hole, 3-a power supply module, 4-a temperature detection module, 5-a signal transmission module, 6-a power supply module, 61-a thermoelectric generation chip, 62-a capacitor, 63-LDO, 64-insulating glue, 66-a copper aluminum alloy cover plate, 67-a tube shell, 68-a wireless transmission chip, 69-a body temperature sensing chip, 70-a boosting and monitoring chip and 71-an electrostatic protection circuit.
Detailed Description
Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by the same or similar reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale.
Embodiment A temperature measurement System
Referring to fig. 1, the present embodiment provides a temperature measurement system, which includes a power supply module, an electrostatic protection circuit, a signal transmission module, and a temperature detection module. The temperature detection module is connected with the signal transmission module, and the power supply module is respectively connected with the temperature detection module and the signal transmission module. The electrostatic protection circuit is simultaneously connected with the power supply module, the signal transmission module and the temperature detection module.
The temperature detection module is used for detecting the temperature of a human body and sending a detection result to the signal transmission module. The temperature detection module can specifically adopt a temperature sensor, a main body of the temperature detection module adopts a contact type M601 digital temperature sensing chip in the embodiment, and the temperature sensing chip has the advantages of fast temperature measurement, low power consumption, good consistency, flexible programmable configuration, long service life and the like, and the temperature measurement precision can reach +/-0.1 ℃ within the range of 28 ℃ to 43 ℃.
The signal transmission module is used for transmitting the body temperature data detected by the temperature detection module to the user terminal. The data transmission may be based on bluetooth or ZigBee technology. Taking the bluetooth technology as an example, the signal transmission module body may adopt a Printed Circuit Board Assembly (PCBA) Board integrated with the bluetooth function. Of course, if the data transmission module is based on other data transmission technologies such as the ZigBee technology, the signal transmission module may also adopt other forms. Such transmission techniques belong to the prior art and are not described in detail.
The signal transmission module is in communication connection with the user terminal and is used for transmitting the body surface temperature of the user detected by the temperature detection module to the user terminal, the user terminal acquires real-time body temperature data, judges whether the body temperature is in a normal temperature range or not by combining the normal body temperature of the human body, for example, whether the body temperature is between 36 ℃ and 37.5 ℃, and sends a prompt to remind the user of abnormal body temperature when the body temperature is not in the normal temperature range; when human body temperature is in the contrast temperature interval, user terminal uploads user's body temperature to the high in the clouds, makes things convenient for medical personnel to carry out real time monitoring to user's body temperature. In addition, the user terminal may also display the body temperature of the user. The user terminal may adopt an existing common product form, and the present invention is not particularly limited thereto.
The power supply module is respectively connected with the temperature detection module and the signal transmission module so as to respectively supply power to the temperature detection module and the signal transmission module. The power supply module specifically comprises a temperature difference power generation chip, a capacitor, a boosting and monitoring chip and an LDO (low dropout regulator). One end of the capacitor is connected with the temperature difference power generation chip, the other end of the capacitor is connected with the input end of the boosting and monitoring chip, and the output end of the boosting and monitoring chip is connected with the low-dropout linear voltage regulator. The thermoelectric generation chip is manufactured by adopting a unique film technology according to the Seebeck effect principle. When the thermoelectric generation chip is used, the thermoelectric generation chip is directly or indirectly contacted with the skin of a human body, a certain temperature difference exists between the body surface temperature of the normal human body and the ambient temperature of the normal human body, and the thermoelectric generation chip generates electricity by utilizing the temperature difference between the body surface temperature of the human body and the ambient temperature of the normal human body, so that the temperature detection module and the signal transmission module are powered in real time, and the temperature detection module and the signal transmission module are not required to be powered by an external battery.
The electrostatic protection circuit is respectively connected with the temperature difference power generation chip, the capacitor, the boosting and monitoring chip and the low-dropout linear voltage regulator of the power supply module.
Specifically, the thermoelectric generation chip is connected with the capacitor, and the other end of the capacitor is connected with the LDO. The pure use of the thermoelectric generation chip for power supply has certain limitations. This is because the temperature on the surface of the human body often changes, and in addition, factors such as season and environment will also cause drastic changes in temperature difference, for example, in the case of walking or running, the power generation efficiency of the chip will be improved due to the occurrence of air flow, so that it is difficult to ensure stable power supply of the temperature difference power generation chip.
The electrostatic protection circuit is a TVS (transient suppression) diode array with an anode connected with a low potential and a cathode connected with a chip to be protected, and the TVS diode is small in size and convenient to integrate; the electrostatic protection device has the advantages of high charge release speed and high potential barrier recovery speed, is an ideal electrostatic protection device, has strong antistatic capability, and can meet the protection requirement on static when portable equipment is in contact with a human body. When static electricity acts on a module connected with the static protection circuit, the PN junction of the cathode of the TVS diode in the static protection circuit is subjected to avalanche breakdown under the condition of high voltage generated by the static electricity, so that charges are discharged quickly, the PN junction is recovered quickly after being discharged, and the extra discharged charges are prevented, so that the problem of static damage caused by the wearable equipment in the process of contacting with a human body can be reduced, and the chip module is prevented from being damaged; the voltage boosting and monitoring chip monitors the voltage of the temperature difference power generation chip, and when the voltage value is higher than a warning value V1, the voltage is boosted and then output to the voltage stabilizer, so that the safe operation of the voltage stabilizer is ensured; when the voltage is lower than the warning value V1, outputting the alarm model to the CPU; when the voltage is lower than the critical value V2, the boosting and detecting circuit is turned off, the power supply module has no output voltage, and errors caused by low-voltage operation of subsequent chips are prevented.
The temperature measurement system that this embodiment provided adopts electric capacity storage to be provided with the electric charge that the thermoelectric generation chip formed, makes power module provide continuous stable power supply through LDO after stepping up and monitoring chip steps up again, and the independent external electrostatic protection circuit of every chip reduces the damage that static brought the power module simultaneously.
As an optional implementation manner, an RF switch (radio frequency switch) may be further installed between the thermoelectric generation chip and the capacitor, and the power supply module may be switched by the radio frequency switch, so as to control the operation of the whole temperature measurement system. The radio frequency switch can be specifically controlled through a user terminal, for example, a smart phone is used as the user terminal, and an APP installed on the smart phone can be used for controlling.
Second embodiment wearable temperature measuring device
Referring to fig. 2 to 4, the present embodiment provides a wearable temperature measuring device, which includes a temperature measuring device housing 1, in which the temperature measuring system of the first embodiment is installed. Two sides of the temperature measuring device shell 1 are respectively and fixedly connected with two connecting belts 2. The power supply module 3 is arranged in the temperature measuring device shell 1, and meanwhile, the temperature difference power generation chip in the power supply module 3 is arranged at the bottom of the temperature measuring device shell 1, is used for contacting the skin of a human body through the shell when the wearable temperature measuring device is worn, and is suitable for transmitting heat energy to the temperature difference power generation chip from one part of the skin of the human body when the bottom of the shell is contacted with the skin of the human body; temperature detection module 4 is inlayed on the bottom inner wall of temperature measuring device shell 1, and fixedly connected with signal transmission module 5 on the top inner wall of temperature measuring device shell 1. Because the temperature detection module 4 senses the temperature of the skin through the inner wall of the bottom of the casing 1 of the temperature measuring device, the bottom of the casing 1 or the casing 1 is generally made of a material with good thermal conductivity.
The interface tape 2 specifically includes a protective layer 21, a waterproof layer 22, and an adhesive layer 23. The adhesive layer 23 is used for adhering or bonding with the skin of the human body, the waterproof layer 22 is far away from the skin of the human body, and the protective layer 21 is positioned between the waterproof layer 22 and the adhesive layer 23. The protective layer 21 includes two polyurethane film layers 211 and an antibacterial layer 212, and the antibacterial layer 212 is disposed between the two polyurethane film layers 211. The antibacterial layer 212 contains a silver ion antibacterial agent, the adhesive layer 23 can be made of a medical adhesive, and the waterproof layer 22 can be made of release paper or release film.
Further, air holes 24 may be further formed in the connecting band 2, and the air holes 24 penetrate through the connecting band 2, and the longitudinal section of the connecting band is preferably an isosceles trapezoid. Set up to isosceles trapezoid through the cross-section with bleeder vent 24, improved the heat dissipation on skin surface, prevented that sweat stain's the condition from appearing on attached in-process belt surface, ensured the device fastness when attached. The number of the air holes 24 may be set according to the actual area of the connection belt 2 and the heat dissipation requirement, and is not particularly limited. The present invention is not particularly limited to the shape of the transverse cross section of the vent hole 24, and may be circular, polygonal, etc., or may have other shapes.
The internal packaging structure of the wearable temperature measuring device provided by the embodiment is shown in fig. 5 and 6, and specifically comprises a temperature difference power generation chip 61, a capacitor 62, an LDO63, an insulating glue 64, a copper-aluminum alloy layer 65, a copper-aluminum alloy cover plate 66, a tube shell 67, a wireless transmission chip 68, a body temperature sensing chip 69, a boosting and monitoring chip 70, and an electrostatic protection circuit 71. The wireless transmission chip 68, the capacitor 62, the LDO63, the boost and monitor chip 70, and the electrostatic protection circuit 71 are adhered to the package 67. The other surface of the wireless transmission chip 68 is adhered with an insulating adhesive 64, the insulating adhesive 64 is adhered with a temperature difference generating chip 61 and a temperature sensing chip 69, and finally, the packaging is carried out through a copper-aluminum alloy cover plate 66. The copper-aluminum alloy cover plate 66 enables the human skin and body temperature sensing chip 69 and the thermoelectric generation chip 61 to have good thermal conductivity.
The wearable temperature measuring device provided by the embodiment has the following working principle:
when the temperature measuring system and the wearable temperature measuring device are used, the temperature difference power generation chip is used for generating power, so that the temperature sensor and the signal transmission module are powered in real time, the body surface temperature of a user detected by the temperature sensor is transmitted into the user terminal APP through the signal transmission module, the user terminal APP acquires real-time body temperature data, whether the body temperature is in a normal temperature range is judged by combining the normal body temperature of the human body, for example, whether the body temperature is in a range of 36-37.5 ℃, and when the body temperature is not in the normal temperature range, a prompt is sent to remind the user of abnormal body temperature; when human body temperature is in the contrast temperature interval, show user's body temperature by user terminal APP, upload to the high in the clouds simultaneously with user's body temperature in real time, made things convenient for medical personnel to carry out real-time check to each user's body temperature.
It is to be understood that such detail is solely for that purpose and that variations can be made therein without departing from the spirit and scope of the utility model except as it may be limited by the claims. The descriptions of "first", "second", and the like used in the description of the present invention are for distinguishing different objects, and are not intended to describe a specific order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. The above-mentioned embodiments of the present invention are merely examples for clearly illustrating the utility model, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that various changes and modifications may be made on the basis of the above-mentioned description, and all embodiments may not be exhaustive, and all obvious changes and modifications that are included in the technical solutions of the present invention are still within the scope of the present invention.
Claims (10)
1. A thermometry system, comprising: the device comprises a power supply module, an electrostatic protection circuit, a temperature detection module and a signal transmission module; the temperature detection module is used for detecting body temperature and acquiring body temperature data;
the signal transmission module is connected with the temperature detection module and used for transmitting the body temperature data to a user terminal; the power supply module is respectively connected with the temperature detection module and the signal transmission module; the electrostatic protection circuit is connected with the power supply module, the signal transmission module and the temperature detection module;
the power supply module comprises a temperature difference power generation chip, a capacitor, a boosting and monitoring chip and a low-dropout linear voltage regulator; one end of the capacitor is connected with the temperature difference power generation chip, the other end of the capacitor is connected with the input end of the boosting and monitoring chip, and the output end of the boosting and monitoring chip is connected with the low-dropout linear voltage regulator;
the electrostatic protection circuit is a TVS diode array.
2. The thermometry system of claim 1, wherein:
the signal transmission module is used for wirelessly transmitting the body temperature data detected by the temperature detection module to the user terminal.
3. The thermometry system of claim 2, wherein:
the signal transmission module comprises a Bluetooth module and/or a ZigBee wireless transmission chip and/or a WiFi chip.
4. The thermometric system of any of claims 1-3, wherein:
and a radio frequency switch is arranged between the thermoelectric generation chip and the capacitor.
5. A wearable temperature measuring device, comprising: a housing and a connecting band;
the connecting band is used for fixing the shell on the surface of human skin, and the temperature measuring system according to any one of claims 1 to 4 is installed in the shell;
the thermoelectric generation chip in the power supply module is arranged at the bottom of the shell and is suitable for contacting with the skin of a human body through the bottom of the shell; the temperature detection module is embedded in the inner wall of the bottom of the shell; the signal transmission module is fixedly connected to the inner wall of the top of the shell.
6. The wearable thermometry device of claim 5, wherein:
the connecting band includes first connecting band and the second connecting band that is connected respectively with temperature measuring device shell both sides.
7. The wearable thermometry device of claim 5, wherein:
the connecting belt comprises a protective layer, a waterproof layer and an adhesive layer; the adhesive layer is suitable for being attached or adhered to human skin, the waterproof layer is far away from the human skin, and the protective layer is located between the waterproof layer and the adhesive layer.
8. The wearable thermometry device of claim 5, wherein:
the connecting belt is provided with air holes, and the air holes penetrate through the connecting belt.
9. The wearable thermometry device of claim 8, wherein:
the longitudinal section of the air holes is isosceles trapezoid.
10. The wearable thermometry device of claim 7, wherein:
the opening area of each air hole on the upper surface of the waterproof layer is smaller than that of the air hole on the lower surface of the bonding layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122842532.8U CN216309273U (en) | 2021-11-19 | 2021-11-19 | Temperature measurement system and wearable temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122842532.8U CN216309273U (en) | 2021-11-19 | 2021-11-19 | Temperature measurement system and wearable temperature measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216309273U true CN216309273U (en) | 2022-04-15 |
Family
ID=81122311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122842532.8U Active CN216309273U (en) | 2021-11-19 | 2021-11-19 | Temperature measurement system and wearable temperature measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216309273U (en) |
-
2021
- 2021-11-19 CN CN202122842532.8U patent/CN216309273U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101672254B1 (en) | Passive over/under voltage control and protection for energy storage devices associated with energy harvesting | |
| CN101977544B (en) | Detection device for vital signs | |
| US20140299169A1 (en) | Electronic power management system for a wearable thermoelectric generator | |
| US11054850B2 (en) | Portable solar power management system | |
| US20180206729A1 (en) | Wearable patch comprising three electrodes for measurement and charging | |
| CN106388792A (en) | Smart wristband | |
| CN110487437A (en) | Integrated temperature monitoring system | |
| CN110098648A (en) | Energy management system for Oceanic View sounding buoy | |
| CN216309273U (en) | Temperature measurement system and wearable temperature measuring device | |
| Thomas et al. | SmartHat: A battery-free worker safety device employing passive UHF RFID technology | |
| CN110730491A (en) | Interconnected satellite terminal applied to container transportation monitoring | |
| CN106072974A (en) | A kind of intelligent satellite location footwear | |
| CN210696148U (en) | Safety helmet with personnel life safety monitoring and indoor positioning functions | |
| US9997945B2 (en) | Chargeable device and charger thereof | |
| CN103196624A (en) | Wireless pressure transmitter utilizing temperature difference to generate electricity | |
| WO2022171870A1 (en) | Helmets with automated systems and methods of using the same | |
| CN110768582A (en) | Electronic equipment | |
| CN111579106A (en) | Cable on-line monitoring device and system | |
| CN216393193U (en) | Electronic tag and safety helmet | |
| CN211349062U (en) | Portable positioning monitoring device | |
| CN218920625U (en) | Positioning module and self-moving equipment | |
| CN215305806U (en) | Temperature detection equipment and wearable equipment | |
| CN220797861U (en) | Solar-based power supply equipment and environment monitoring equipment | |
| CN211961127U (en) | Passive temperature measurement bracelet | |
| US20240130458A1 (en) | Helmets With Automated Systems and Methods of Using the Same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |