Monitoring of products
The invention relates to the monitoring of products by means of active radio tags. According to the invention, packagings of products are provided with an active radio tag that detects at least one environmental condition and/or at least one packaging state, and which emits a signal at time intervals, which provides information about a unique identifier and at least one state in which the respective product is found. The signal is picked up by a receiver that extracts the unique identifier and the state information and transmits same together with location information to an external server.
1. A method comprising:
connecting an active radio tag to a packaging of a product, the active radio tag comprising:
one or more sensors,
a first transmitter,
a power supply configured to power the one or more sensors and the first transmitter;
detecting, using the one or more sensors of the active radio tag, an environmental condition to which the product is subject and/or a packaging state of the packaging of the product;
transmitting, using the first transmitter of the active radio tag, an advertising data packet comprising a unique identifier for the active radio tag and one or more pieces of state information associated with the product, wherein the one or more pieces of state information comprise information about the environmental condition to which the product is subject and/or information about the packaging state of the packaging of the product;
listening in on one or more frequency ranges using a data receiving device comprising:
a receiver,
a location determination sensor configured to receive signals from a satellite navigation system,
a second transmitter connected to one or more servers via a network, and
one or more processors coupled to the receiver, the location determination sensor, and the second transmitter;
receiving the advertising data packet from the active radio tag using the receiver of the data receiving device;
extracting, using the one or more processors of the data receiving device, the unique identifier for the active radio tag and the one or more pieces of state information associated with the product from the advertising data packet;
determining, using the location determination sensor of the data receiving device, location information associated with the active radio tag; and
conveying, using the second transmitter of the data receiving device, the unique identifier, the one or more pieces of state information, and the location information a server of the one or more servers via the network.
2. The method of claim 1 , wherein the unique identifier and the packaging state information and/or the environmental condition are propagated by the first transmitter of the active radio tag via:
a Bluetooth advertising data packet as Bluetooth name, or
a WiFi advertising data packet as WLAN SSID, or
a ZigBee advertising data packet as PAN ID, or
an SRD radio signal into a Sigfox cloud.
3. The method of claim 2 , comprising indicating the packaging state and/or a warning signal on a status indicator of the active radio tag.
4. The method of claim 1 , comprising identifying product information from a product database using the unique identifier.
5. The method of claim 4 wherein the product information comprises one or more of: product name information, product type information, product manufacturing information, product batch number information, instructions for using the product, product expiration information, and product composition information.
6. The method of claim 1 , wherein the information about the environmental condition comprises information about a temperature, an air pressure, a humidity level, an intensity of electromagnetic radiation in a defined wavelength range, and an acceleration.
7. The method of claim 1 , wherein the information about the packaging state indicates whether the packaging is opened or unopened.
8. The method of claim 1 , wherein the information about the packaging state indicates whether the packaging was crushed or not crushed.
9. The method of claim 1 , wherein the information about the packaging state indicates whether the packaging was exposed to a humidity level that exceeds a defined dampness limit value.