Electronic seal
First Claim
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1. An electronic seal for recording the time of changes in the seal state and storing logistics data comprising:
- a sealing strip fixed in a casing and formed as a safety loop; and
a monitoring device located in the casing and attached to said sealing strip for monitoring the seal state, said monitoring device includingi. a power source operatively connected to said monitoring device;
ii. an opening sensor;
iii. a clock generator;
iv. a counter clocked by said clock generator for generating a time value; and
v. a memory containing starting time, time zone, loading point, destination, country, owners, forwarding agents and transportation information, said opening sensor detecting changes in the seal state and storing an associated time value in said memory, said monitoring device generating time values at periodic intervals, detecting changes in the seal state and recording time values associated with changes in the seal state so that the time and duration of seal openings as well as the logistics of the casing, determines the location of the casing at the time of a seal opening.
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Abstract
An electronic seal for a casing records the time of changes in the seal state. A sealing strip is fixed in the casing and is formed as a safety loop. A monitoring device is located in the casing and attached to the sealing strip. The monitoring device generates time values which are recorded when changes in the seal state occur.
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Citations
25 Claims
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1. An electronic seal for recording the time of changes in the seal state and storing logistics data comprising:
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a sealing strip fixed in a casing and formed as a safety loop; and a monitoring device located in the casing and attached to said sealing strip for monitoring the seal state, said monitoring device including i. a power source operatively connected to said monitoring device; ii. an opening sensor; iii. a clock generator; iv. a counter clocked by said clock generator for generating a time value; and v. a memory containing starting time, time zone, loading point, destination, country, owners, forwarding agents and transportation information, said opening sensor detecting changes in the seal state and storing an associated time value in said memory, said monitoring device generating time values at periodic intervals, detecting changes in the seal state and recording time values associated with changes in the seal state so that the time and duration of seal openings as well as the logistics of the casing, determines the location of the casing at the time of a seal opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic seal for recording the time of changes of the seal state comprising:
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a sealing strip fixed in a casing and formed as a safety loop; a monitoring device located in the casing and attached to said sealing strip for monitoring the seal state, said monitoring device including i. a power source operatively connected to said monitoring device; ii. an opening sensor for detecting changes in the seal state in the form of interruptions of the safety loop; iii. a clock generator; iv. a counter clocked by said clock generator for generating a time values at periodic intervals; and v. a non-volatile memory having several storage locations including at least one permanent storage location containing permanent data and at least one erasable storage location containing the actual count of the counter, and logistics data including starting time, time zone, loading point, destination, country, owners, forwarding agents and transportation means; and a control logic capable of successively accessing said erasable storage locations for storing the actual count of said counter in response to each detected change in the seal state by said opening sensor, wherein said opening sensor includes a comparator with two inputs and an output, said first input is connected directly to said counter, said second input is connected to said sealing strip which is connected to said counter, said output is connected to said control logic which stores the actual count when said comparator detects a change in said second input, whereby the stored actual count, together with the logistics data, determines the location of the casing at the time of a seal opening. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An electronic seal for recording the time of changes of the seal state comprising:
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a sealing strip fixed in a casing and formed as a safety loop; a monitoring device located in the casing and attached to said sealing strip for monitoring the seal state, said monitoring device including a power source operatively connected to said monitoring device, an opening sensor, a clock generator, a counter clocked by said clock generator for generating a time value; and
a memory containing logistics data including starting time, time zone, loading point, destination, country, owners, forwarding agents and transportation information, said opening sensor detecting changes in the seal state and storing an associated time value in said memory; anda locking device having a pivotable eccentric cam and a detent for releasably engaging said cam in a locked position for attaching said sealing strip to said locking device, said monitoring device generating time values at periodic intervals, detecting changes in the seal state and recording a time value associated with changes in the seal state sot hat the time and duration of seal openings can be known and, employing the logistics data, the location of the casing at the time of a seal opening can be determined. - View Dependent Claims (23, 24)
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25. An electronic seal for recording the time of changes of the seal state and storing logistics data comprising:
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a sealing strip fixed in a casing and formed as a safety loop; a control logic; and a monitoring device located in the casing and attached to said sealing strip for monitoring the seal state, said monitoring device including i. a power source operatively connected to said monitoring device; ii. an opening sensor; iii. a clock generator; iv. a counter clocked by said clock generator for generating a time values; and v. a memory containing starting time, time zone, loading point, destination, country, owners, forwarding agents and transportation information, said opening sensor detecting interruptions of the safety loop and storing the actual count of said counter in said memory, said monitoring device generating time values at periodic intervals, detecting changes in the seal state and recording a time value associated with changes in the seal state so that the time and duration of seal openings as well as the logistics of the casing, determines the location of the casing at the time of a seal opening.
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Specification