KR20140101024A - Flexible pad-type GNSS terminal device for using solar power generating and charging module - Google Patents

Abstract

A flexible pad-type GNSS terminal of the present invention includes the following: a GNSS receiver unit receiving the current location from a satellite and computing location information; a WLAN transceiver unit receiving a correction signal through wireless Internet communications; an RF transceiver unit transmitting corrected location information through near field communications; a main control unit determining an output cycle; a dye-sensitized solar cell applying required power to the units by using solar light; and an electric double layer condenser storing electricity generated from the solar cell or applying the required power to the units while the solar light is away. According to the present invention, a location-based service, having been applied only to a smartphone to a certain extent, can be expanded to a person and object location monitoring area.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a flexible pad type GNSS terminal device for use with a solar power generation and power storage module,

The present invention relates to a GNSS terminal device of a flexible pad type which is driven by a solar power generation and power storage module and does not require external charging, and more particularly to a solar power generation module and a power storage module for storing power produced from such power generation facility (GNSS) terminal device of the location-based service, it is unnecessary to carry out external charge management for the operation of the GNSS terminal device (Power Maintenance-Free), and the above power generation module can be used as a sheet- (DSSC), and the upper power storage module is constructed with a sheet-like electric double layer condenser (EDLC) having a large surface area and a thin thickness, the activated carbon electrode being disposed with the separator interposed therebetween. Flexible pad-type GNSS that can be easily mounted on clothing such as a hat, an armband, a vest, shoes, It relates to the end device.

 Typically, the location based service (LBS) market is entering its full-fledged growth period. The LBS market has received interest and expectation from the beginning of mobile service. However, the LBS industry, which did not lead the market in earnest, started to expand in earnest due to the combination of the mobile industry. Personal location information services using smart phones have already become popular, and the market is now demanding applications in a variety of mobile objects (such as vehicles waiting to be shipped from a large yard), emergency, emergency, and leisure, .

Referring to FIG. 1, a vehicle storage field in which a plurality of vehicles waiting to be shipped is stored, that is, a yard is as small as several hundreds of M to several KM, which is again divided into several blocks. A plurality of vehicles are stored in each block. In particular, in the field of vehicles with a length of 1 KM, the number of vehicles stored is about 40,000.

Most of the vehicles stored in the vehicle storage field are moved to different areas. In order to easily find such vehicles, the vehicles are classified according to the types of vehicles / moving regions and stored in designated locations. In most car storage fields, the location and the inventory management of vehicles are managed by inputting the documents and the time-based workers entering the vehicle through the field.

However, as described above, it is very difficult to confirm the exact location of the vehicle desired by the manager in a wide range of vehicle storage fields. In the case where the vehicle is stored at a different position due to a mistake of a worker or a missing document, There is a problem that waste of time causes an increase in labor costs and work efficiency, and further adversely affects sales activities.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a location-based service provided for a smart phone, a mobile phone, a tablet PC, And a flexible pad type GNSS terminal device driven by a photovoltaic power generation and power storage module which can be implemented in the form of an independent terminal that can be installed in clothes of an aged person who is outdoors or the like.

Another object of the present invention is to provide a GNSS terminal apparatus of a flexible pad type which is driven by a solar power generation and power generation module capable of automatically internal storage through solar power generation without any external charging in the outdoors where power can not be supplied will be.

Another object of the present invention is to provide a GNSS terminal apparatus and a GNSS terminal apparatus in which a basic service function for calculating a current position of a GNSS terminal from a satellite, an optional service function for improving a positioning accuracy by receiving a correction signal through a wireless Internet, To provide a flexible pad type GNSS terminal device that provides an application service function capable of managing location information remotely.

According to an aspect of the present invention, there is provided a GNSS terminal apparatus of a non-charging flexible pad type of the present invention includes a solar cell module in the form of a flexible sheet, a power storage module in the form of a flexible sheet And a GNSS communication module installed at one side of the power storage module and receiving power from the power generation module or the power storage module and periodically transmitting position information.

As described above, according to the configuration of the present invention, the following effects can be expected.

First, by expanding the application of GNSS terminal devices in areas that are periodically moved in the outdoors, managing the location of objects moving periodically, managing the location of elderly people active in the outdoors, or periodically managing locations such as dogs or guns, The GNSS service market, which is mainly provided, is expected to be widened.

Second, by stacking the power generating facilities and storage facilities vertically using flexible pads, it is possible to obtain the necessary power without being restricted by a place with a small size (for example, a length X width X thickness X 150 mm X 100 mm X 6 mm) A no-fill system can be implemented.

Third, the GNSS terminal apparatus forms a cooperative network with a control server having a specific function, thereby providing an emergency relief service or a location tracking application service, thereby significantly improving the service width.

Fourth, the power generation module and the power storage module are realized by the dye-sensitized solar cell (DSSC) and the electric double layer condenser (EDLC) using the flexible polymer film, so that they can be attached to the living clothes or can be loaded on the roof of the structure , And its application range is expanded.

1 is a photograph of a yard where a plurality of vehicles are usually stored.
Fig. 2 is a block diagram showing a configuration of a non-charging flexible pad type GNSS terminal apparatus according to the present invention; Fig.
Figs. 3 to 5 are a front view, a side view, and a rear view showing a configuration of a GNSS terminal apparatus of a flexible pad type according to the present invention; Fig.
6 is a sectional view showing a configuration of a GNSS terminal apparatus of a flexible pad type according to the present invention;
7 is a conceptual diagram showing a configuration of a GNSS network system according to the present invention;
8 is a table showing an industrial use range of the GNSS terminal apparatus according to the present invention.

Brief Description of the Drawings The advantages and features of the present invention, and how to achieve them, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. The dimensions and relative sizes of layers and regions in the figures may be exaggerated for clarity of illustration. Like reference numerals refer to like elements throughout the specification.

The embodiments described herein will be described with reference to block diagrams and conceptual diagrams that are ideal schematic diagrams of the present invention. Therefore, the forms of the illustrations can be modified by system realization techniques and / or error correction. Accordingly, the embodiments of the present invention are not limited to the specific forms shown but also include changes in the form that are generated according to the erroneous vehicle correction. Thus, the regions illustrated in the figures have schematic attributes, and the blocks of regions illustrated in the figures are intended to illustrate particular types of system regions and are not intended to limit the scope of the invention.

Hereinafter, preferred embodiments of a non-charging flexible pad type GNSS terminal apparatus according to the present invention having the above-described configuration will be described in detail with reference to the accompanying drawings.

2, the GNSS terminal apparatus 100 of a non-charging flexible pad type includes a solar cell module 200 in a flexible sheet form, a flexible And a GNSS communication module 400 installed on one side of the power storage module 300 and periodically transmitting position information by being supplied with power from the power generation module 200 or the power storage module 300 .

3 to 5, the GNSS terminal device 100 of the present invention can be easily attached to a hat, a jacket, an armband, a boot or other apparel of a person who is engaged in outdoor activities, a vehicle waiting in the open air, Shaped flexible pad type in order to expand the utilization range of the location-based service (LBS) limited to a cellular phone or the like by installing the LBS.

The solar power generation module 200 can convert the solar energy into electric energy and drive the GNSS terminal device 100. [ The solar cell module 200 may include any type of solar cell capable of generating energy using sunlight incident from the outside. A crystalline silicon solar cell, a thin film (a-Si, CIGS, CdTe) solar cell, a dye-sensitized solar cell or an organic polymer solar cell.

In the case of the present invention, the solar cell module 200 may use a Dye-sensitized solar cell (DSSC) in view of energy conversion efficiency. DSSC (DSSC) is a type of organic solar cell that has high energy conversion efficiency, low manufacturing cost, long-term stability, and transparency, while the single crystal, polycrystalline or amorphous silicon solar cell has low energy conversion efficiency and opaque property. Respectively.

In particular, since the basic structure of the transparent substrate or the transparent electrode has a sandwich structure, a sheet-shaped dye-sensitized solar cell (DSSC) having a large surface area and a small thickness is used for realizing a GNSS terminal apparatus 100 of a flexible pad type Can be suitable.

Referring to FIG. 6, a dye-sensitized solar cell (DSSC) includes a first transparent substrate 210 (ITO + PET) coated with a conductive transparent electrode, a catalyst electrode 220 formed on a first transparent substrate 210 A second transparent substrate 240 (ITO + PEN) coated with a conductive transparent electrode, a photoelectrode 230 (Dye + TiO2) formed on the catalyst electrode 220, and a second transparent substrate 240 coated with a conductive transparent electrode.

The transparent substrates 210 and 240 may include a polymer film that is flexible and bent. For example, the polymer film may include polyethylene naphthalate (PEN) or polyethyleneterephthalate (PET). The transparent electrode (ITO) may be indium tin oxide or may include F-doped tin oxide (FTO).

The catalytic electrode 220 may include a platinum (Pt) or carbon (C) electrode. The catalytic electrode 220 serves as a catalyst for the oxidation-reduction reaction of the optical electrode 230.

The light electrode 230 includes nanoparticles of transition metal oxide in which dye particles and dye particles are chemically adsorbed. The dye particles may comprise ruthenium (Ru). The transition metal oxide nanoparticles may include any one of titanium dioxide (TiO2), tin dioxide (SnO2), and zinc oxide (ZnO). Here, the absorption of solar energy occurs in the dye, and the separation / transport of the electrons generated by the photoexcitation reaction takes place in the conduction band of the surface of the transition metal oxide nanoparticles in a manner diffused by the electron concentration difference. The photoelectrode 230 forms a plurality of cells by a sealant 232 arranged in a lattice form. The electrolyte solution is accommodated together with the photoelectrode 230 in the cell partitioned by the sealant 232. The electrolyte solution functions to reduce the oxidized dye by supplying electrons to the dye molecules oxidized by the absorption of sunlight.

The power storage module 300 can accumulate the electricity generated in the solar power generation module 200. During the day when the sunlight is sufficiently supplied, electricity is generated using the power generation module 200 to charge the power storage module 300. The power storage module 300 is discharged during the night when the power generation module 200 fails to operate. As the power storage module 300, a secondary battery or an electric double layer capacitor capable of repetitive charge / discharge can be used.

When a dye-sensitized solar cell (DSSC) is used as the solar cell module 200, the solar cell module 300 for storing electric energy generated from the solar cell may include an electric double layer capacitor Layer Condenser: EDLC) is more preferable. An active carbon electrode is disposed with a separator interposed therebetween, so that a sheet-like electric double layer condenser (EDLC) having a large surface area and a small thickness is advantageous for realizing a GNSS terminal apparatus 100 of a flexible pad type.

In addition to being easy to produce in sheet form, electric double layer capacitors (EDLC) have kinetic mechanisms of very fast and reversible ions as the basic operating principle of energy storage, so that charge / discharge rate is fast and high current It is effective for the GNSS terminal apparatus 100 that needs to be supplied with a minimum necessary power for transmitting location information when necessary.

Particularly, even in a wide operating temperature range, the charging / discharging efficiency is far superior to that of conventional secondary batteries and is safe. An electric double layer capacitor (EDLC) is an electrostatic layer formed at the interface between an activated carbon-based electrode and an organic electrolyte. The electric double layer capacitor (EDLC) accumulates electric energy similarly to a battery using an electric double layer state as a dielectric. And the charge is adsorbed and desorbed on the electric double layer at the interface.

6, the electric double layer capacitor (EDLC) of the present invention includes a metallic casing 310 as a current collector, an activated carbon electrode 320 bonded to the metallic casing 310 by a conductive binder and permeated with an electrolyte, And a separator 330 for preventing shorting of the activated carbon electrode 320. The metal case 310 is excellent in current collection and can be a flexible aluminum foil (Al foil). The activated carbon electrode 320 includes an active material having a large specific surface area such as activated carbon fiber or activated carbon powder, a conductive material for imparting conductivity, and a binder for binding the active material and the conductive material. The electrolytic solution may include both an aqueous solution and a non-aqueous solution. The separator 330 may include an insulating polypropylene.

The electric double layer capacitor (EDLC) having the above structure is excellent in discharge characteristics exhibiting instantaneous high current and high output and has a cycle characteristic of hundreds of thousands of cycles, so that the lifetime is semi-permanent. Therefore, It can be suitably used for the GNSS terminal apparatus 100 of the invention.

As described above, the GNSS terminal apparatus 100 of the present invention is constructed such that it can output the stored electric energy to the GNSS communication module 400 when necessary, by using the power storage module 300, The power is stored by the solar power generation and power storage modules 200 and 300 without the need for an external power supply (Power Maintenance-Free) by being configured to be able to transmit location information even at night or in the dark without sunlight or illumination. It is possible to implement a flexible pad type GNSS terminal apparatus 100 that is driven.

The power generation module 200 can increase output by connecting a plurality of cells in series and / or in parallel. For example, if the effective voltage for driving the GNSS communication module 400 is required to be at least 3.3V, six unit cells of 0.6V can be connected in series. Likewise, the power storage module 300 can connect two of them in series to output a driving voltage of about 3.3V.

2, the GNSS communication module 400 includes a GNSS receiving unit 410, a WLAN transmitting / receiving unit 420, an RF transmitting / receiving unit 430, a main control unit 440, 450, and a power supply control unit 460.

Referring to FIG. 7, the GNSS receiving unit 410 receives satellite information including the position and time information of the satellite 500 by the GNSS receiving unit 410, and transmits it to the main control unit 440. However, since the positioning accuracy is somewhat insufficient with the above-described basic functions for calculating the current position of the GNSS terminal apparatus 100 from the satellites, a correction signal is transmitted via the wireless Internet to the WLAN transmitting / receiving unit 420 And additional functions to improve positioning accuracy are needed.

The WLAN transmitting / receiving unit 420 is a communication module for wireless Internet communication. The WLAN transmitting / receiving unit 420 performs data communication with the DGNSS server 520 through a wireless AP (Access Point) And receives the position error correction information in the RTCM format from the DGNSS server 520. [ Then, the WLAN transmitting / receiving unit 420 transmits the received position error correction information to the main control unit 440. The main control unit 440 can process the reception information transmitted from the GNSS receiving unit 410 and the error correction information transmitted from the WLAN transmitting / receiving unit 420 to determine the high precision positioning of the GNSS terminal apparatus 100. [ Through such a correction process, the positioning accuracy can be increased to within 2M.

Meanwhile, the WLAN transmitting / receiving unit 420 transmits its location information to the predetermined control server 530 through the wireless Internet communication, and the control server 530 of the specific function remotely transmits the location information of the GNSS terminal 100 Location information can be managed.

The RF transmitting / receiving unit 430 is connected to another portable DGNSS terminal 600 located at about 1 Km or more, using the medium frequency band as a means for local communication with another portable DGNSS terminal 600. More specifically, And receives position information transmitted from another portable DGNSS terminal apparatus 600. [

For example, the DGNSS terminal apparatuses 600 may communicate with each other in such a manner that their own location information transmitted from the main control unit 440 is encrypted and output to the RF transmission unit 430 and received by another RF receiving unit 430 Location information can be shared. When the GNSS terminal apparatus 100 does not include the WLAN transmitting / receiving unit 420 and uses only the RF transmitting / receiving unit 430, the RF transmitting / receiving unit 430 must exist at a distance that enables communication in an integrated manner However, there is a merit that an infrastructure is not necessary separately by constructing an AP system using medium frequency RF.

The main control unit 440 controls and manages the operation of each of the units 410, 420, and 430. For example, it is possible to process the position error correction information output from the WLAN sending / receiving unit 420 so that accurate position calculation is performed according to a user's command, or to transmit the processed position information to another portable DGNSS terminal device 600 have. Conversely, the position information of the other portable DGNSS terminal device 600 can be received and stored in its own memory (not shown), output to an external device (not shown) or displayed on a display portion (not shown) .

The main control unit 440 can determine the power save mode or the operation mode so that only the necessary power for transmitting the position information can be used only when necessary. For example, the RF transmitting / receiving unit 430 may perform scheduling for the RF transmitting / receiving unit 430 or management of data synchronization time so that the RF transmitting / receiving unit 430 does not need to be always in a waiting state for signal reception, . According to the present invention, when photovoltaic power generation and storage are performed for about five hours a day, if information is transmitted at a cycle of twice per hour, it can be used for about 100 days.

The standby battery 450 uses the power generation module 200 during the daytime and mainly uses the power storage module 300 during the nighttime but the power generation amount can not keep up with the amount of discharge and the power storage module 300 is completely discharged It can be used as an emergency at night.

The power supply control unit 460 determines whether to supply electricity from the power generation module 200 according to the incident amount of sunlight or to drive the power storage module 300 to supply electric power from the power storage module 200 if the solar light incident amount is less than the reference value, 450 to supply electricity. For example, a potential difference produced by the power generation module 200 may be applied directly to the driving circuit of the GNSS communication module 400 or indirectly after being accumulated in the power storage module 300. In addition, the power control unit 460 may determine that the standby battery 450 is operated so that the location information can be supplementarily transmitted to the rainy season in which the storage energy is exhausted and solar power can not be generated.

As described above, according to the present invention, a GNSS terminal device that does not require external charging is manufactured as a flexible pad type so that it can be freely attached to an outer surface or a structure, and for this purpose, a dye sensitized solar cell suitable for a sheet shape and an electric double layer capacitor As shown in FIG. Many other modifications will be possible to those skilled in the art, within the scope of the basic technical idea of the present invention.

The location information service of the present invention can be utilized in various fields. For example, as shown in FIG. 8, a vehicle can be used for tracking an animal, such as an animal position tracking, a gun tracking, a parking management, a load management, a child safety, Pet management, safe area setting, basic data of SNS service, and so on.

100: GNSS terminal device 200: power generation module
210: first transparent substrate 220: catalytic electrode
230: photoelectrode 232: sealant
240: second transparent substrate 300: power storage module
310: metal case 320: activated carbon electrode
330: Separate 400: Communication module
410: GNSS receiving unit 420: WLAN transmitting / receiving unit
430: RF transmitting / receiving unit 440: main control unit
450: spare battery 460: power supply control unit
500: Satellite 510: Wireless AP
520: DGNSS server 530: control server
600: another DGNSS terminal device

Claims (10)

A solar cell module in the form of a flexible sheet;
A power storage module in the form of a flexible sheet corresponding to the power generation module; And
And a GNSS communication module installed at one side of the power storage module and receiving power from the power generation module or the power storage module to periodically transmit position information. The method according to claim 1,
The power generation module includes:
A first transparent substrate of a polymer film coated with a conductive transparent electrode and selected from polyethylene naphthalate (PEN) or polyethylene terephthalide (PET);
A catalyst electrode formed on the first transparent substrate;
An optical electrode formed on the catalyst electrode; And
And a second transparent substrate formed on the photoelectrode and coated with a conductive transparent electrode and made of a polymer film selected from polyethylene naphthalate (PEN) or polyethylene terephthalide (PET). GNSS terminal device. The method according to claim 1,
Wherein the power storage module includes an electric double layer capacitor (EDLC) capable of repetitive charging / discharging, the electric double layer capacitor comprising:
A sheet-like metal case as a current collector;
An activated carbon electrode coupled to the metal case by a conductive binder and infiltrated with an electrolytic solution; And
And a separator for preventing short-circuiting of the activated carbon electrode. The method according to claim 1,
The communication module includes:
A GNSS receiving unit for receiving satellite signals and calculating current position information;
An RF transmitting / receiving unit for transmitting the position information through short-range communication; And
And a main control unit for determining a transmission period of the position information. 5. The method of claim 4,
The communication module includes:
Further comprising a WLAN transmitting / receiving unit for receiving correction information via TCP / IP communication and transmitting the correction information to the main control unit,
Wherein the main control unit performs precise positioning using the position information directly received by the GNSS receiving unit and the correction information received from the WLAN transmitting / receiving unit. 6. The method of claim 5,
The communication module includes:
An auxiliary battery for supplying power to the power module in a state that the power module is not operated and the power module is discharged; And
Further comprising a power control unit for determining whether to apply power to the GNSS terminal apparatus. A GNSS receiving unit for receiving the current position from the satellite and calculating position information;
A WLAN transmitting / receiving unit for receiving a correction signal via wireless Internet communication;
An RF transmitting / receiving unit for transmitting the corrected position information through short distance communication;
A main control unit for determining the transmission period;
A dye-sensitized solar cell that applies necessary power to the units using solar light; And
And an electric double layer condenser for accumulating electricity generated from the solar cell or applying necessary power to the units while the sunlight is absent. 8. The method of claim 7,
Wherein the WLAN transmitting / receiving unit transmits the location information to the server through the wireless Internet communication and manages the location information remotely. 9. The method of claim 8,
The dye-sensitized solar cell (DSSC) is characterized in that a transparent substrate coated with a transparent electrode is formed of a polymer film made of polyethylene naphthalate (PEN) or polyethylene terephthalate (PET) and the overall shape is a flexible sheet GNSS terminal device of flexible pad type. 10. The method of claim 9,
Characterized in that the separator interposed between the activated carbon electrodes is made of polypropylene and the metal case for collecting the activated carbon at the outer periphery of the activated carbon electrode is formed of aluminum foil so that the overall shape is a flexible sheet. GNSS terminal device of flexible pad type.

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