DE202014103169U1 - Data acquisition arrangement - Google Patents

Abstract

Measurement data acquisition arrangement (1) with - a data network (2), - a number of distributed sensors (4) of a plurality of different, independent users, - a server (6), and - at least one query unit (3), the sensors (4 ), the server (6) and the at least one query unit (3) can be connected to the data network (2), characterized in that - the sensors (4) for recording measurement data (MD) and transmitting them to the server (6) in Connection with a respective unique identification date (ID) of the sensor (4) are set up, - the server (6) for receiving and storing the measurement data (MD) in connection with the identification date (ID) of the associated sensor (4) independently of one The user of the sensor (4) is set up, and - the at least one query unit (3) for requesting measurement data (MD) by transmitting a query message containing the identification date (ID) of the sensor (4) to be queried to the S ensor (4) via the data network (2) and for receiving the measurement data (MD) of the queried sensor (4) stored in the server (6) in connection with the identification date (ID), the server (6) for transmitting the measurement data (MD) stored on the server (6) for the identification date (ID) from the server (6) to the query unit (3) in response to receipt of the query message by the query unit (3) by the server (6).

Description

The invention relates to a measurement data acquisition arrangement comprising a data network, a number of distributed sensors of a plurality of different, independent users, a server, and at least one interrogation unit, wherein the sensors, the server and the at least one interrogation unit can be connected to the data network.

For remote monitoring and building automation there is a need to be able to remotely access measurement data acquired by sensors via a data network, in particular the Internet, from an interrogation unit. In order to enable the communication of distributed sensors in a worldwide data network and to obtain a remote access, the sensors and possibly associated base station units must be configured very expensive. For this user-dependent communication addresses and access codes are to be entered. The remote access can then be made possible via protected accesses in that the interrogation unit accesses the measured values of the sensors belonging to the base station unit stored in a base station unit.

In CN 101551662 A is a sensor monitoring method for a sensor network based on the Internet describe, in which can be retrieved via a browser without special software from remote computers, the sensor identification in a server to establish a relationship with the sensor to be monitored. The server works as a web server, so that the remote evaluation unit can be accessed using special tools via the evaluation software stored on the server using a browser. However, the sensors still have to be laboriously coupled with the server and it is a device of the server sensor network required.

US 2014/0074979 A1 describes a wireless sensor network having a number of smart sensors coupled to a coordinator via the Internet. For a number of sensors, a base station with an integrated web server is provided so that the user can connect to this base station via a standard browser. The base stations equipped with the web server must be set up by means of special equipment and, if necessary, the release of a firewall for remote access via the Internet. In addition, the sensors must be individually coupled to the base station via the wireless communication path.

Based on this, it is an object of the present invention to provide an easily established measurement data acquisition arrangement in which remote access to measured data of selected sensors is possible without costly setup of communication parameters and in which the measurement data acquisition arrangement of a plurality of independent users protected to a sufficient degree from each other without extensive user authentication can be used.

The object is achieved by the measured data acquisition arrangement having the features of claim 1. Advantageous embodiments are described in the subclaims.

• – die Sensoren zur Erfassung von Messdaten und Übertragung an den Server in Verbindung mit einem jeweiligen eindeutigen Identifikationsdatum des Sensors eingerichtet;
• – der Server zum Empfang und zur Abspeicherung der Messdaten in Verbindung mit dem Identifikationsdatum des zugehörigen Sensors unabhängig von einem Nutzer des Sensors eingerichtet; und
• – die mindestens eine Abfrageeinheit zum Anfordern von Messdaten durch Übertragen einer das Identifikationsdatum des abzufragenden Sensors aufweisenden Abfragenachricht an den Sensor über das Datennetzwerk und zum Empfang der im Server in Verbindung mit dem Identifikationsdatum abgespeicherten Messdaten des abgefragten Sensors eingerichtet.

In the measurement data acquisition arrangement of the type mentioned are

• The sensors for acquiring measured data and transmission to the server are set up in connection with a respective unique identification date of the sensor;
• - The server for receiving and storing the measurement data in connection with the identification date of the associated sensor set up independently of a user of the sensor; and
• - The at least one query unit for requesting measurement data by transmitting a the identification date of the sensor to be queried interrogation message to the sensor via the data network and to receive the stored in the server in connection with the identification data measurement data of the queried sensor.

The server is set up to transmit the measurement data stored on the server to the identification data from the server to the interrogation unit in response to the reception of the interrogation unit by the server.

• – Übertragen der Messdaten der Sensoren jeweils in Verbindung mit einem eindeutigen Identifikationsdatum des Sensors an den Server;
• – Abspeichern der übertragenen Messdaten in Verbindung mit dem zugehörigen Identifikationsdatum unabhängig von dem zugeordneten Nutzer auf dem Server;
• – Anfordern von Messdaten über eine Abfrageeinheit durch Übertragen einer das Identifikationsdatum des abzufragenden Sensors aufweisenden Abfragenachricht von der Abfrageeinheit über das Datennetzwerk an den Server; und
• – Übertragen der zu dem Identifikationsdatum auf dem Server abgespeicherten Messdaten von dem Server an die Abfrageeinheit in Reaktion auf den Empfang der Abfragenachricht der Abfrageeinheit durch den Server

durch. The measurement data acquisition arrangement thus introduces:

• - Transferring the measurement data of the sensors in each case in conjunction with a unique identification date of the sensor to the server;
• - storing the transmitted measurement data in connection with the associated identification data independently of the assigned user on the server;
• Requesting measurement data via an interrogation unit by transmitting an interrogation message having the identification data of the sensor to be interrogated from the interrogation unit via the data network to the server; and
• - Transmitting the stored to the identification date on the server measurement data from the server to the interrogation unit in response to the receipt of the query message of the interrogation unit by the server

by.

A server is understood to mean a data processing unit which has a data memory or is connected to a separate data memory on which the received measurement data of the sensors are stored together with the associated identification data of the sensors in the manner of a database. The stored data can then be accessed by the server via the server in that all measurement data or a selected number of measurement data, e.g. be read out of the database for a selected period associated with a requested identification date of a sensor and forwarded to the query unit for display and / or evaluation there.

It is proposed that the individual sensors generally transmit their measurement data to the server in order to collect the measurement data together with the associated identification data for the individual sensors. The remote access to the measurement data is thus not on a decentralized user-related data storage, as is the case with a web server provided in a building. Rather, all independent users access the same server on which, without distinction of the owner of the sensors (i.e., the respective user), the measurement data of all the sensors of the independent users are collected.

This does not differentiate between different users in the server and no user authentication is necessary.

Rather, the communication structure of the sensors for transmitting the measured data to the server is standardized and requires no user-specific parameterization. The communication structure is thus preset in the sensors and optionally in intermediate base stations in the factory. Thus, it is only necessary to connect the sensors directly or via an already adapted to the sensors base station unit to the Internet. The conventional complex setup of the sensors and the base station is eliminated. Access to the measurement data is made possible via the server. Again, there is no separation between the different users, so that the previously common consuming user authentication and associated device of the communication structure is eliminated. Rather, the measurement data of a sensor can be accessed by transmitting a query message with the identification date of the sensor to be interrogated from the interrogation unit to the server. The authentication thus takes place via the identification date of the individual sensors.

For this purpose, the sensors preferably have externally accessible identification codes, e.g. in the form of QR codes. The at least one interrogation unit is then set up to acquire the identification code, to determine an identification date of the associated sensor from the identification code and to generate a query message containing the identification data. The detection unit of the interrogation unit may be e.g. have an optical sensor with associated logic for detecting bar codes or QR codes. It is also conceivable, however, for the interrogation unit to be configured to interrogate radio transponders, the sensors each having an active or passive transponder which transmits the identification code or directly the associated identification data of the sensor to the interrogation unit upon wireless interrogation by the interrogation unit. In this respect, an "identification code" also the identification date itself understood. However, the identification code may also have additional information.

To query a sensor thus the identification code must be known, which is preferably factory preset for the sensors and not user-dependent parameterized.

It is particularly advantageous if the measurement data acquisition arrangement has at least one base station unit which can be connected to the data network and is set up to receive measurement data of connected sensors together with the associated identification data and for forwarding to the server. The communication setup with the server via the data network and the communication setup of the sensors with the base station unit is user-independent in the base station unit and the sensors factory set. Thus, the communication structure without further parameterization in the wired or preferably wireless coupling of the sensors to the base station unit can be done directly on the basis of the factory setting of the communication structure. By connecting the base station unit to the data network, in particular to the worldwide Internet, the base station unit can forward the transmitted to this measurement data without further parameterization to the server. For this purpose, the server preferably has a factory-set, fixed IP address, so that the base station units can send the measurement data by means of a factory-standardized message to the IP address without any further device.

As a result, the sensors and the associated base station units thus only need to be placed at the desired location and the base station unit to be connected to the Internet, for example via a wired LAN line. A User-dependent setup and authentication is then no longer required for further operation.

In a preferred embodiment, the sensors and the at least one base station unit each have a wireless data transmission unit for transmitting the measurement data and the associated identification data from the sensors to the base station unit. In this case, the sensors and the base station units in turn use a factory-set radio communication standard, which requires no further device. It is conceivable that the radio communication via proprietary radio protocols or via standard protocols, such as ZigBee, Bluetooth, WLAN or the like. However, it is crucial that the radio protocols are set up in the factory and do not require any further parameterization from the user in order to ensure the communication setup.

The communication address of the server is thus preferably fixed in the data network, i. static. This communication address of the server is then set for the direct connection of the sensors in the sensors themselves or when using a base station unit in the base station unit fixed and thus predetermined.

The invention will be explained in more detail with reference to an embodiment with the accompanying drawings. Show it:

1 Block diagram of a measurement data acquisition arrangement;

2 - Sketch of the structure of a database of the server with measurement data and associated identification date of the sensors.

1 shows a block diagram of a measurement data acquisition arrangement 1 recognize that a data network 2 includes. The data network 2 has a section that is accessible to a multitude of independent users, in particular the Internet.

The measurement data acquisition system 1 has a number of distributed query units 3 such as computers, smartphones, tablets or similar computing devices attached to the data processing network 2 can be connected. Using this at least one query unit 3 Measurement data can be retrieved and displayed by a number of distributed sensors 4 be recorded. These sensors 4 are independent of each other at the respectively selected locations, as in different buildings arranged to there measurement data, such as temperatures, weather data (air pressure, wind direction, wind speed, outside temperature, rainfall, ...) and possibly other environmental data, such as water level, operating conditions of Devices or systems, etc. to capture. The individual sensors 4 In this case, an unambiguous identification date is assigned, so that the acquired measurement data are assigned to the sensors 4 can be assigned. These identification data of the sensors 4 are preferably factory preset clearly and not changeable by the user. The sensors 4 are either directly to the data network 2 wireless or wired coupled, as in the example below right 1 outlined. It is also conceivable that the sensors 4 each wired or preferably wirelessly with at least one associated base station unit 5 which, in turn, connect to the data network 2 is coupled. The sensors 4 are either directly or via the assigned base station units 5 and the network 2 with a central server 6 connected. The central server 6 has a data processing unit and a data memory. Under a server 6 does not necessarily mean a computer housed in a single housing. Rather, has a server 6 in the sense of the present measurement data acquisition arrangement 1 independent of the physical-spatial configuration, the functionality measurement data together with the associated identification date of the individual sensors 4 over the data network 2 to receive and store so that on the evaluation 3 and the data network 2 by an interrogation message indicating the identification date of the sensor to be interrogated 4 contains, the assigned measured values can be accessed. This in the server 2 stored readings are then sent over the data network 2 to the querying query unit 3 transmitted.

2 Leave a sketch of one of the server 6 recognize stored database. This database contains a large number of records that are separated by the individual lines of the 2 sketched database. The data records each contain one of a sensor 4 detected measurement date MD, which in the data add together with the identification date ID of the associated sensor 4 is stored. The respective measurement data MD can carry a plurality of information, such as, for example, a measured value VAL and an associated time stamp TIM.

The database may be either unordered, requesting measurement data for a selected sensor 4 all the measured data MD stored in connection with the identification date can be read out of the database by means of the identification date ID. If necessary, the server can 6 also have a filter function to the measurement data with a selected identification date according to further criteria Filter selected time ranges by using the time stamp TIM or selected value ranges by comparing them with the measured values VAL.

The server 6 is preferably set up with suitable programming by a data processing program.

The server 6 preferably has a web server, which the query units 3 Provides the required software query for the database through traditional browsers.

It is also conceivable that the query units 3 have an application software (app). Here it is advisable that the query units 3 Mobile phones, smartphones or tablets are, on which an app is loaded. This application (app) preferably contains a functionality with which a sensor identification can be read in, such as, for example, a QR code scanner. When installing the sensors 4 By a user, the user can then capture the sensor identification, ie the identification data and in the application unit 3 Then, without any further need for input from any location to that of the sensor 4 acquired measurement data MD via the server 6 to be able to access.

• a) die Basisstationseinheiten 5 werden mit einem Netzteil mit Versorgungsspannung verbunden, das LAN-Kabel wird in ein Datennetzwerk 2 eingesteckt und verbindet sich einmal kurz mit dem Server 6. Eine Funktionsanzeige an der Basisstationseinheit 5 zeigt dem Nutzer, dass die Kommunikation zwischen der Basisstationseinheit 5 und dem Server 6 funktioniert (z.B. eine grüne LED). Eine Registrierung der Basisstationseinheit 5 durch den Server 6 erfolgt nicht. Es ist keine Parametrisierung erforderlich, da der Kommunikationsaufbau zwischen Basisstationseinheit 5 und Server 6 werksseitig voreingestellt ist und nutzerunabhängig funktioniert.
• b) Die Sensoren 4, die üblicherweise batteriebetrieben sind, werden in Betrieb genommen und senden gemäß ihrer Aufgabe ein von der Basisstationseinheit 5 verständliches Protokoll. Jede Basisstationseinheit 5, die die Aussendung der Sensoren 4 korrekt empfängt (z.B. wenn generelles Datenformat und Checksumme übereinstimmen), überträgt diese Messdaten MD, ohne dass die Basisstationseinheit 5 ihre Bedeutung kennt. Die Übertragung der Messdaten MD an den Server 6 erfolgt z.B. über einen zwischen Basisstationseinheit 5 und Server 6 angeschlossenen Router, ohne dass der Kommunikationsaufbau zwischen Basisstation 5 und Server 6 nutzerabhängig parametrisiert werden muss. Den Basisstationseinheiten 5 sind die Sensoren 4 nicht bekannt. Die Basisstationseinheiten 5 sind eingerichtet, um lediglich deren Messdaten MD und zugeordnete Identifikationsdaten an den Server 6 weiterzuleiten. Befinden sich mehrere Basisstationseinheiten 5 in Reichweite eines Sensors 4, so können die Daten eines Sensors 4 auch mehrfach an den Server 6 über die mehreren Basisstationseinheiten 5 übertragen werden. Damit lässt sich z.B. durch mit Hilfe von Basisstationseinheiten 5 fremder Nutzer oder mit Hilfe eigener weiterer Basisstationseinheiten 5 die Übertragungssicherheit verbessern. Eine nutzerabhängige Einrichtung der Messdatenerfassungsanordnung 1 ist nicht vorgesehen.
• c) Jeder Sensor 4 hat ein eindeutiges Identifikationsdatum ID, das vom Server 6 während der Produktion werksseitig vergeben wird. Der Server 6 akzeptiert Daten von jedem Sensor 4 mit einem gültigen Identifikationsdatum ID, egal über welche Basisstationseinheit 5 die Daten angeliefert werden. Die Daten eines Sensors 4 werden auf dem Server 6 für eine vorgegebene Zeit dauerhaft nutzerunabhängig gespeichert.
• d) Ein Nutzer mit einer Abfrageeinheit 3, wie bspw. einem Smartphone, lädt eine Applikation z.B. aus einer Applikationsdatenbank. Jeder Sensor 4 hat sein Identifikationsdatum ID auch als QR-Code auf dem Typenschild aufgedruckt. Der Nutzer öffnet die Applikation der Abfrageeinheit 3 und scannt mit der Kamera der Abfrageeinheit 3 das QR-Label. Nach sofortiger Weitergabe des hieraus abgeleiteten Identifikationsdatums ID des zugeordneten Sensors 4 an den Server 6 über die Applikationseinheit 3 und das Datennetzwerk 2 erscheinen innerhalb kurzer Zeit die Messdaten MD des zugehörigen Sensors 4, wie z.B. Temperatur, Feuchte, Luftgüte auf der Anzeige der Abfrageeinheit 3. Die Abfrageeinheit 3 ist nun mit den Daten des Sensors 4, die auf dem Server 6 abgespeichert werden, verbunden, ohne dass eine Anmeldung oder aktive Registrierung notwendig ist.

The device and the operation of the measured data acquisition arrangement thus takes place as follows:

• a) the base station units 5 are connected to a power supply with supply voltage, the LAN cable becomes a data network 2 plugged in and connects once briefly with the server 6 , A function display on the base station unit 5 shows the user that the communication between the base station unit 5 and the server 6 works (eg a green LED). A registration of the base station unit 5 through the server 6 not done. No parameterization is required because the communication setup between base station unit 5 and server 6 Factory preset and user independent works.
• b) The sensors 4 , which are usually battery operated, are put into operation and send according to their task one from the base station unit 5 understandable protocol. Each base station unit 5 that transmit the sensors 4 correctly receives (eg if general data format and checksum match), transmits these data MD without the base station unit 5 knows their meaning. The transmission of measured data MD to the server 6 takes place eg via a between base station unit 5 and server 6 connected router without the communication between base station 5 and server 6 user-dependent parameterization. The base station units 5 are the sensors 4 not known. The base station units 5 are set up only their measurement data MD and associated identification data to the server 6 forward. Are there several base station units 5 within reach of a sensor 4 so can the data of a sensor 4 also several times to the server 6 over the several base station units 5 be transmitted. This can be done, for example, by means of base station units 5 foreign users or with the help of own further base station units 5 improve transmission security. A user-dependent device of the measured data acquisition system 1 is not scheduled.
• c) Each sensor 4 has a unique ID ID from the server 6 is assigned at the factory during production. The server 6 accepts data from each sensor 4 with a valid identification date ID, regardless of which base station unit 5 the data will be delivered. The data of a sensor 4 be on the server 6 stored for a given time permanently user independent.
• d) A user with a query unit 3 , such as a smartphone, loads an application eg from an application database. Every sensor 4 has also printed its identification date ID as a QR code on the nameplate. The user opens the application of the query unit 3 and scans with the camera of the interrogation unit 3 the QR label. After immediate disclosure of the derived therefrom identification date ID of the associated sensor 4 to the server 6 via the application unit 3 and the data network 2 the measured data MD of the associated sensor appear within a short time 4 , such as temperature, humidity, air quality on the display of the interrogation unit 3 , The query unit 3 is now with the data of the sensor 4 on the server 6 stored, without a registration or active registration is necessary.

A sensor 4 or its measured data MD can be repeated by scanning with any number of other interrogation units 3 connect. Likewise, a query unit 3 Any number of different identification data from different sensors 4 record and according to the data at the server 6 request and display.

After scanning the QR label of a sensor 4 can the associated identification date ID in the query unit 3 are stored, so that the query of the measured data MD of the associated sensor 4 in the future, even without reentering or scanning the associated identification date ID of the sensor 4 is possible.

To authorize access to the measured data MD of a sensor 4 is only required that once the knowledge of the ID ID is obtained.

Using a QR label, a highly tamper-proof identification date can be encoded to prevent unauthorized interrogation by other users. The same effect can be achieved if the identification date ID in a transponder of the sensor 4 is stored. Access to the identification date ID thus requires access to the corresponding sensor 4 , which is usually reserved for the authorized user.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• CN 101551662 A [0003]
• US 2014/0074979 A1 [0004]

Claims (4)

Measurement data acquisition arrangement ( 1 ) with - a data network ( 2 ), - a number of distributed sensors ( 4 ) a plurality of different, independent users, - a server ( 6 ), and - at least one query unit ( 3 ), whereby the sensors ( 4 ), the server ( 6 ) and the at least one query unit ( 3 ) to the data network ( 2 ), characterized in that - the sensors ( 4 ) for the acquisition of measurement data (MD) and transmission to the server ( 6 ) in conjunction with a respective unique identification date (ID) of the sensor ( 4 ), - the server ( 6 ) for receiving and storing the measured data (MD) in conjunction with the identification date (ID) of the associated sensor ( 4 ) independent of a user of the sensor ( 4 ), and - the at least one query unit ( 3 for requesting measurement data (MD) by transmitting a sensor to be interrogated (ID) of the sensor to be interrogated (FIG. 4 ) to the sensor ( 4 ) over the data network ( 2 ) and to receive in the server ( 6 ) in connection with the identification data (ID) stored measurement data (MD) of the requested sensor ( 4 ), the server ( 6 ) for transferring to the identification date (ID) on the server ( 6 ) stored measurement data (MD) from the server ( 6 ) to the query unit ( 3 ) in response to receiving the polling unit polling message ( 3 ) through the server ( 6 ) is set up. Measurement data acquisition arrangement ( 1 ) according to claim 1, characterized in that the sensors ( 4 ) carry externally accessible identification codes and that the at least one interrogation unit ( 3 ) for detecting the identification code for determining an identification date (ID) of the sensor ( 4 ) is set up from the identification code and for generating a query message containing the identification data (ID). Measurement data acquisition arrangement ( 1 ) according to claim 1 or 2, characterized in that the measurement data acquisition system ( 1 ) at least one base station unit ( 5 ) to the data network ( 2 ) and for the reception of measured data (MD) connected sensors ( 4 ) together with the associated identification date (ID) and for forwarding to the server ( 6 ), wherein the communication with the server ( 6 ) over the data network ( 2 ) and the communication structure of the sensors ( 4 ) with the base station unit ( 5 ) user-independent in the base station unit ( 5 ) is factory set. Measurement data acquisition arrangement ( 1 ) according to claim 3, characterized in that the sensors ( 4 ) and the at least one base station unit ( 5 ) each have a wireless data transmission unit for transmitting the measured data (MD) and the associated identification data (ID) from the sensors ( 4 ) to the base station unit ( 5 ) to have.

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