JP2007233816A - Environment detection information collecting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an environment detection information collecting method in which environment information more than when a sensor is installed at a particular fixed point, can be collected for detection of a dangerous object without causing a privacy problem. <P>SOLUTION: The environment detection information collecting method comprises: an environment detection information receiving method for receiving environment detection information transmitted from a mobile information communication terminal which has an environment detection means having a function of detecting detected environment detection information; and a use counter value providing method by which the terminal provides the user of a mobile information communication terminal with a use counter value as a counter value of transmitting detection information detected by the environment detecting means from the mobile information communication terminal having a function of transmitting environment detection information obtained by collecting and detecting information through the mobile information communication terminal. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an environment detection information collecting method for collecting information by installing measurement devices at many points in a city in order to perform environmental evaluation.

  In order to evaluate the environment, there are systems that collect information by installing measuring devices at many points in the city, and its use is for monitoring the occurrence of social photochemical smog.

  In addition, a service for providing a user with map information by providing a mobile phone with a GPS function has become widespread.

  A system in which a child terminal or an elderly person with cognitive impairment has a portable terminal that transmits position information so that the position can be known outside the home has become widespread.

  Development of the concept of RF sensor tag has been attempted. An RF-ID tag is embedded with an IC chip of 1 mm square or less that is inquired wirelessly. By returning a unique ID, the embedded product is identified, for example, its manufacturing date and conditions Alternatively, the RF sensor tag itself has a sensor function. The concept of the RF sensor tag is such that necessary information is returned in response to an inquiry from the outside, for example, at the time of a disaster.

  Along with the development of sensing technology, there is an odor sensor as a new sensor technology. The odor sensor is a kind of gas sensor, but usually the response of multiple sensors with different sensitivity characteristics is analyzed comprehensively Gas component analysis and identification can be performed. As a sensor device, a semiconductor type, an oxide semiconductor type, and the like are well known, but a sensor using an AT-cut crystal or an organic sensitive film is formed in an ultrasonic wave propagation path of a surface acoustic wave element. There is something like

  There are two types of sensitive membranes: inorganic sensitive membranes and organic sensitive membranes. The organic sensitive membranes can be designed with a large degree of freedom on their surface molecular structure, so they can be used for specific gases. Selectivity can be demonstrated.

  Further, as a method of driving the spherical surface acoustic wave element, a time interval of burst signals output from the element at regular intervals after inputting a high frequency burst signal having a finite duration shown in Patent Document 2 to the element. The lap speed can be obtained by measuring.

  The timing of the signal that is output every time it passes around the interdigital electrode around the spherical surface acoustic wave element is the same as the time required to go around, and the circulation speed is the gas to the sensitive film formed on the surface. It measures the degree of slowing down due to the adhesion of molecules.

  In the present invention, the surface acoustic wave may be a leaky surface acoustic wave, a pseudo-leakage surface acoustic wave, or a corridor wave, and a surface acoustic wave that concentrates energy on the substrate surface and propagates. If it is good.

The patent literature is as follows.
JP 2004-61370 A JP 2005-291955 A

  However, the function of the RF sensor tag is not yet known because it has just been proposed, but it has been pointed out that it may cause privacy problems. There is a concern that it will be computerized by sensing scattered throughout the living environment without human knowledge.

  On the other hand, for example, detection of dangerous goods in terrorism countermeasures is naturally limited in its ability to install a sensor at a specific fixed point.

In order to solve the above-described problems, the invention according to claim 1 receives environment detection information transmitted from a mobile information communication terminal having environment detection means and having a function of transmitting detected environment detection information. Environment detection information receiving method
The terminal uses mobile information communication as a consideration for transmitting detection information detected by the environment detection means from a mobile information communication terminal having a function of transmitting environment detection information collected and detected via the mobile information communication terminal. The environment detection information collection method which consists of the usage consideration provision method which provides a usage consideration with respect to a terminal user is proposed.

  The invention according to claim 2 proposes the environment detection information collecting method according to claim 1, wherein the environment detection information is detection information regarding a plurality of gases.

  The invention of claim 3 proposes the environment detection information collecting method according to claim 1 or 2, wherein not only the environment detection information but also the environment detection point information is provided together.

  The invention according to claim 4 proposes the environment detection information collecting method according to claim 3, wherein the environment detection information is transmitted based on the environment detection point information.

  The invention according to claim 5 proposes the environment detection information collecting method according to claim 3 or 4, wherein the environment detection information is obtained by a plurality of environment detection means.

  The invention according to claim 6 proposes the environment detection information collecting method according to any one of claims 1 to 5, characterized in that provision of usage consideration is based on providing environment detection means to a mobile information communication terminal. ing.

  The invention according to claim 7 proposes the environment detection information collecting method according to any one of claims 1 to 6, characterized in that at least a part of the environment detection information can be output by the mobile information communication terminal.

  The invention of claim 8 proposes the environment detection information collecting method according to any one of claims 1 to 7, wherein at least part of the environment detection information is odor information.

  The invention according to claim 9 proposes the environment detection information collecting method according to any one of claims 1 to 8, wherein at least a part of the environment detection information is information on detection, manufacture, storage, or use of explosives. .

The invention according to claim 10 proposes the environment detection information collecting method according to any one of claims 1 to 9, wherein at least a part of the environment detection information is information on detection or production, storage, and use of toxic gas. .

  The invention according to claim 11 proposes the environment detection information collecting method according to any one of claims 1 to 9, wherein at least a part of the environment detection information is information about pollen detection.

  The invention of claim 12 proposes the environment detection information collecting method according to any one of claims 1 to 11, wherein at least part of the environment detection information is sold.

  The invention according to claim 13 proposes the environment detection information collecting method according to any one of claims 1 to 12, characterized in that the environment detection means comprises a plurality of spherical surface acoustic wave elements.

  In the present invention, when a sensing function is given to a mobile body, it is considered difficult to mount the mobile body if there is no advantage for the owner of the mobile body.

  The present invention has a communication function such as a mobile phone and an automobile, has a gas sensing function in a very large proportion of the population, and manages it in an integrated manner for social safety or user safety. In addition, it provides a system that provides danger information, etc. not only to the person but also to society.

  Examples related to the embodiment will be described below.

  FIG. 1 is a schematic diagram showing a configuration of a drive measuring apparatus for a spherical surface acoustic wave element according to an embodiment of the present invention. This drive measurement apparatus uses a plurality of spherical surface acoustic wave elements 10. Here, the spherical surface acoustic wave elements 10 have the same configuration except for the type of reaction film.

  As shown in FIG. 2, the spherical surface acoustic wave element 10 includes a quartz spherical member (three-dimensional substrate) 12 having a diameter of 1 cm supported on one end of a fixing support member 11 and a quartz crystal on the surface of the spherical member 12. It is comprised from the interdigital electrode (electroacoustic transducer) 13 formed along the path | route generally called a Z-axis cylinder defined from the crystal axis of this.

  The spherical member 12 has an annular surface capable of propagating a surface acoustic wave excited from the interdigital electrode 13.

  The interdigital electrode 13 is provided with an interdigital element electrode 13 for exciting a surface acoustic wave individually on the surface of the spherical member 12 and propagating the surface acoustic wave (SAW) along the surface by receiving a high frequency burst signal. I have. In addition, various shapes can be used for the interdigital electrode, and the shape is not limited to a specific shape as long as an electric signal is efficiently converted into a surface acoustic wave. Here, as shown in a partially enlarged view in FIG. 2, the element electrodes 13a and 13b have a shape in which a plurality of interleave portions are formed every period D of about 70 μm.

  It should be noted that the period in which the surface acoustic wave circulates on the Z-axis cylinder is about 10 μs, and a circulation reception signal of 100 laps or more is output from the interdigital electrode 13 every lap. High precision measurement is possible.

  For example, the high-frequency signal generator 20 generates a high-frequency signal of 150 MHz and RF burst with a narrow band having a pulse width of 2 μs and outputs the high-frequency signal to the two driving switches 21A and 21B.

  For example, organic sensitive films shown in Table 1 are formed on the surfaces of the plurality of spherical surface acoustic wave elements. For example, an odor sensor can be formed by forming an organic sensitive film with a thickness of several μm or less. The spherical surface acoustic wave generates a surface acoustic wave by applying a high-frequency signal to the interdigital electrode, and the generated surface acoustic wave starts to circulate around the surface in a band shape. By forming a sensitive film on this surface, a change in the propagation speed of surface acoustic waves due to the mass load effect caused by the adsorption of odorous molecules on the sensitive film occurs, and the circulatory speed of the output burst signal. It influences as a change in the propagation state, etc., and analyzes and measures by measuring it.

  FIG. 3 is an explanatory diagram including a circuit, and FIG. 4 shows an example of a spherical surface acoustic wave element output. The vertical axis represents amplitude intensity, and the horizontal axis represents time. It can be seen that the surface acoustic wave is output every time it makes one round. The following circulatory signal is obtained for a crystal 3.3 mm element that takes 1 microsecond per lap. For example, the signal of the 10th lap can be easily identified in the section indicated by the arrow. That is, the time required for one round can be easily measured by dividing the time width of the section indicated by the arrow in the figure by 10. Specifically, each signal in FIG. 4 is converted into digital data, the phase and intensity of a predetermined frequency are accurately measured by Fourier transform, and the amount of change between a plurality of elements is relatively numerically transmitted by communication. I can do it. In addition, phase and intensity changes can be obtained with high accuracy by using wavelet transform, and can be used for analysis as quantitative data of the difference in response between each element and used for gas composition analysis. It is.

  Such a method for measuring the circulation time of an electrical signal that is repeatedly output can be easily converted into data using an analog-digital conversion device and digitally calculated, and can also be performed by a digitizer device usually called a digital oscilloscope. Can do.

  The above has described a measurement method using a burst signal whose duration is short, but by measuring the resonance frequency of an element called QCM, it is possible to measure the circumferential velocity of a surface acoustic wave. When the time required for one round is an integral multiple of the frequency period, the resonance state occurs, and the elastic wave can circulate with a large amplitude. By measuring the frequency applied to the element in this state, or the frequency of the high-frequency signal output from the element, it is possible to obtain information on the surface velocity of the surface acoustic wave. Even if the time is measured or the method of measuring the resonance frequency is adopted, the present invention is not limited thereby.

  Thus, in gas sensing, a general method is to prepare a plurality of sensitive films and analyze how to respond to each sensitive film to comprehensively determine the type of gas.

  It is known that poison gas can be carried out if a necessary chemical synthesis apparatus is possessed, and it will be necessary to detect such synthesis in the future to prevent such synthesis or to detect it in advance. For the synthesis, various chemical materials are generated by using a plurality of materials and mixing them. In other words, if you have the ability to detect the materials and intermediate products necessary for the detection of completed toxic chemicals, the synthesis of toxic substances can be detected and controlled by the network. I can do it. Although it is possible to detect a single substance or gas, in practice it is difficult to detect danger if there is no detection of multiple substances or multi-dimensional detection using multiple sensitive films. Is inferred. It is very meaningful that a user's portable product can be provided with a sensor having a plurality of detection sensors in response to such a request. Alternatively, if a plurality of users have mutually complementary sensor sets, the number of sensor heads in each user device can be reduced.

In this case, when a mobile phone has a sensor function and the information collector collects the information, the mobile user basically has such a function in his / her own mobile phone. I do not like. In some cases, the user may dislike privacy concerns, mobile phone power consumption, mobile phone weight load, and, in some cases, the detection of the target itself.

  For this reason, according to the kind and number of sensors to be mounted, it is possible to provide benefits such as discounts on usage fees when using mobile terminals. The privilege content can be changed according to the type of sensor.

  FIG. 5 is a configuration diagram of the mobile terminal, and FIG. 6 is a flowchart showing a procedure for performing environmental evaluation based on information from the two mobile terminals shown in FIG. The procedure described in the portable terminal 1 has spherical surface acoustic wave elements (ball SAW sensors) having N different sensitive films in the portable terminal 1, and the phase from the phase value used as the reference for the circumferential speed of each element. In addition to phase, it has a function of transmitting the sensor set ID, T1 value, and position information S1 of the portable device in addition to phase. The sensor set ID is a number assigned to each sensor set so as to have a different ID if at least the sensitive film of the ball SAW sensor included in each ball SAW sensor set is different. For example, the telephone number of the portable terminal may be used, but when replacing the sensor set, it is necessary to associate the telephone number with the sensor set. T1 is the temperature at which the sensor output (phase) is obtained. The position information S1 of the mobile device indicates position information on the map of the mobile terminal. The location information on the map can be obtained not from the mobile terminal but from the station that manages the radio signal of the mobile terminal, and a system that freely captures the location information of the mobile terminal has already been realized and marketed. Therefore, it will not be described here.

  In the environmental evaluation and analysis mechanism, information from the mobile terminal 2 that is separately owned as in the mobile terminal 1 in the figure (the sensitive film of each ball SAW device of the sensor set must have a film made of a different substance). In addition, gas analysis is performed by the method described in the following document. When the above two mobile terminals are located in the same environment in the same time zone, and when the same gas situation is assumed to be maintained even at different times, the analysis results are integrated and analyzed. It becomes possible to do.

  In other words, by using not only the measurement data of the sensor set of a single mobile terminal, but also the measurement results of multiple mobile terminals, more types of sensitive membranes can be used for the environment to be detected more accurately. The result of the evaluation can be obtained by the environmental evaluation analysis mechanism.

  If a gas sensor using a spherical surface acoustic wave element is used, the volume does not take up by integration, and the sensor shape is the same, so the user can select the sensing function on demand. Have.

  In that case, as a motivation for mounting the sensor, it is possible to provide a function such as detection of dangerous gas that the user prefers to detect with the sensor. This can be done by the information collector detecting and analyzing the signal of the sensor itself and issuing a danger notice from the portable terminal. Although it is possible to determine these dangers by actually using only a mobile phone, more memory and computation are required, and if it is dangerous information, the information collector will be informed separately. It becomes possible to instruct the rescuer to perform the express.

  Note that information for a plurality of information collectors can be provided for a single portable sensor.

A sensor set using a surface acoustic wave element can easily integrate completely different functions with different sensitive films, and the degree of integration is very high in the case of a spherical surface acoustic wave element. Since it is possible to let the contractor form the sensitive film, on-demand manufacturing is easy and information management is also easy.

  And since the same driving method can be adopted, sensors having different functions can be packed in the same sensor package. For this reason, the sensor set packaging company aggregates the requests from a plurality of information collectors and packages them. For example, when a request is made to install a sensor package that obtains different information from different information collectors, if the same sensor element is included in response to requests from two information collectors, Can be omitted. FIG. 7 is an explanatory diagram showing a case of distribution of sensor information when the same sensor elements are not duplicated.

  Furthermore, FIG. 8 is an explanatory diagram showing a flow of reward reduction after distribution of sensor information in such a case.

  When a user carries a sensor set and sends the characteristics of the sensor element to an information collector through communication, the type of the sensitive film of the sensor and the sensor characteristics can be used as a key for protecting information security. The key can be managed by the user or can be managed by an information collector, but at least it is possible to prevent information leakage due to interception of the communication.

  However, if all the sensor sets are installed in a single mobile terminal, only one piece of meaningful information can be generated. When the information is collected by communication or by interception Due to privacy issues, people do not like to carry these sensors and as a result sensor networks are not realized.

  Therefore, the privacy problem is addressed by making a meaningless sensor set that cannot be meaningful information from a single terminal.

  However, if the information collector knows that they are evaluating the same environment, for example, if it can easily know that it is in the same place with the location information, it can be used by multiple users. It is possible to construct information that cannot be obtained from information from a single or limited terminal.

  In this way, the user is less likely to be concerned about privacy issues.

  Table 1 is as follows.

  The present invention relates to an environment detection information collecting method for collecting information by installing measurement devices at many points in a city in order to evaluate the environment.

It is a schematic diagram which shows the structure of the spherical surface acoustic wave element which concerns on embodiment of this invention. It is a schematic diagram which shows the partial structure of the interdigital electrode in embodiment of FIG. It is a schematic diagram which shows the structure of the drive measurement apparatus of the spherical surface acoustic wave element which concerns on embodiment of FIG. The figure which shows the signal waveform in the measurement of FIG. It is a schematic diagram which shows the structure of the portable terminal in embodiment of FIG. It is a flowchart which shows the operation | movement of the drive measurement using the portable terminal which concerns on embodiment of FIG. It is a schematic diagram which shows distribution of the measurement result of the drive measuring apparatus of the spherical surface acoustic wave element which concerns on embodiment of FIG. It is a schematic diagram which shows the flow of the reward after distribution of the measurement result of the drive measuring apparatus of the spherical surface acoustic wave element concerning the embodiment of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Spherical surface acoustic wave element 11 ... Fixing support material 12 ... Spherical member 13 ... Interdigital electrode 20 ... High frequency signal generation part 21A, 21B ... Drive switch 22A, 22B ... Measurement switch 24 ... Amplifier 25 ... Measurement part 26 ... Switch selector

Claims (13)

An environment detection information receiving method for receiving environment detection information transmitted from a mobile information communication terminal having a function of transmitting detected environment detection information having environment detection means;
The terminal uses mobile information communication as a consideration for transmitting detection information detected by the environment detection means from a mobile information communication terminal having a function of transmitting environment detection information collected and detected via the mobile information communication terminal. An environment detection information collecting method comprising a usage consideration providing method for providing usage consideration to a terminal user.   The environment detection information collecting method according to claim 1, wherein the environment detection information is detection information regarding a plurality of gases.   3. The environment detection information collecting method according to claim 1, wherein not only the environment detection information but also environment detection point information is provided together.   4. The environment detection information collecting method according to claim 3, wherein the detected environment detection information is transmitted based on the environment detection point information.   5. The environment detection information collecting method according to claim 3, wherein the environment detection information is obtained by a plurality of environment detection means.   6. The environment detection information collecting method according to any one of claims 1 to 5, wherein the provision of usage consideration is based on providing environment detection means in the mobile information communication terminal.   7. The environment detection information collecting method according to claim 1, wherein at least part of the environment detection information can be output by a mobile information communication terminal.   The environment detection information collecting method according to claim 1, wherein at least part of the environment detection information is odor information.   The environment detection information collecting method according to any one of claims 1 to 8, wherein at least a part of the environment detection information is information on detection, manufacture, storage, and use of explosives.   The environment detection information collecting method according to any one of claims 1 to 9, wherein at least a part of the environment detection information is information on detection or production, storage, and use of a toxic gas.   The environment detection information collecting method according to claim 1, wherein at least a part of the environment detection information is information about pollen detection.   The environment detection information collecting method according to claim 1, wherein at least a part of the environment detection information is sold.   The environment detection information collecting method according to claim 1, wherein the environment detection means includes a plurality of spherical surface acoustic wave elements.

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