Static memory device with shared memory for an instrument and a wireless radio
A static memory device including an instrument, a wireless radio, a shared memory, an outgoing memory portion and an incoming memory portion. The instrument includes an environmental sensing device, a hazard detection device, and/or an industrial safety device. The wireless radio sends and receives information on a wireless mesh network. The shared memory is connected to the instrument and wireless radio and includes static message memory having static messages related to the instrument. The outgoing memory portion receives outgoing information from the instrument and transmits the outgoing information to the wireless radio for transmission on the wireless mesh network. The incoming memory portion receives incoming information from the wireless radio and transmits the incoming information to the instrument. The shared memory restricts the wireless radio and the instrument from both raising grant lines and granting data to either the incoming memory portion or the outgoing memory portion simultaneously.
1. A mesh network device for connecting to, sending and receiving information on a mesh wireless network comprising:
an instrument comprising at least one of an environmental sensing device, a hazard detection device, an industrial safety device, and a radio for transmitting and receiving information on the mesh wireless network; and
a display for presenting a signal quality indicator of a connection of the radio to other nodes of the mesh wireless network, the signal quality indicator derived from a combination of a received signal strength (RSS) and a packet receive ratio (PRR) of all instruments in the mesh wireless network,
wherein the instrument multiplies a RSS of a most recent message received from each node in the mesh wireless network by a PRR of the mesh network device.
2. The mesh network device of claim 1 , wherein the RSS represents a most recent network hop taken by a packet.
3. The mesh network device of claim 1 , wherein the PRR is a counter that begins at a predetermined number and is incremented and decremented when expected packets are received or not received, respectively.
4. The mesh network device of claim 3 , wherein the PRR is incremented and decremented by values of three and two, respectively.
5. The mesh network device of claim 1 , wherein the signal quality indicator is based on a sum of a product of the RSS and the PRR for each node; wherein the sum of the products is divided by a number of nodes in the mesh wireless network.
6. The mesh network device of claim 1 , wherein an alarm sounds when the signal quality indicator drops below a predetermined level.
7. The mesh network device of claim 1 , further comprising:
an NFC tag programmed with assignment information, wherein the assignment information is at least one of a location assignment for the NFC tag and an instrument operator assignment for the NFC tag;
wherein receipt of the assignment information at a safety device triggers activation of a function of the safety device.
8. The mesh network device of claim 1 , wherein:
the instrument monitors at least one of a peer alarm, a worker biometric datum or an area environmental datum; and
the instrument transmits the at least one peer alarm, worker biometric datum or area environmental datum for presentation on another instrument in the mesh wireless network.
9. A mesh network device for connecting to, sending and receiving information on a mesh wireless network comprising:
an instrument comprising at least one of an environmental sensing device, a hazard detection device, an industrial safety device, and a radio for transmitting and receiving information on the mesh wireless network; and
a display for presenting a signal quality indicator of a connection of the radio to other nodes of the mesh wireless network, the signal quality indicator derived from a combination of a received signal strength (RSS) and a packet receive ratio (PRR) of all instruments in the mesh wireless network,
wherein the RSS represents a most recent network hop taken by a packet.
10. The mesh network device of claim 9 , wherein the PRR is a counter that begins at a predetermined number and is incremented and decremented when expected packets are received or not received, respectively.
11. The mesh network device of claim 10 , wherein the PRR is incremented and decremented by values of three and two, respectively.
12. The mesh network device of claim 9 , wherein the signal quality indicator is based on a sum of a product of the RSS and the PRR for each node; wherein the sum of the products is divided by a number of nodes in the mesh wireless network.
13. The mesh network device of claim 9 , wherein an alarm sounds when the signal quality indicator drops below a predetermined level.
14. The mesh network device of claim 9 , further comprising:
an NFC tag programmed with assignment information, wherein the assignment information is at least one of a location assignment for the NFC tag and an instrument operator assignment for the NFC tag;
wherein receipt of the assignment information at a safety device triggers activation of a function of the safety device.
15. The mesh network device of claim 9 , wherein:
the instrument monitors at least one of a peer alarm, a worker biometric datum or an area environmental datum; and
the instrument transmits the at least one peer alarm, worker biometric datum or area environmental datum for presentation on another instrument in the mesh wireless network.
16. A mesh network device for connecting to, sending and receiving information on a mesh wireless network comprising:
an instrument comprising at least one of an environmental sensing device, a hazard detection device, an industrial safety device, and a radio for transmitting and receiving information on the mesh wireless network; and
a display for presenting a signal quality indicator of a connection of the radio to other nodes of the mesh wireless network, the signal quality indicator derived from a combination of a received signal strength (RSS) and a packet receive ratio (PRR) of all instruments in the mesh wireless network,
wherein the PRR is a counter that begins at a predetermined number and is incremented and decremented when expected packets are received or not received, respectively.
17. The mesh network device of claim 16 , wherein the PRR is incremented and decremented by values of three and two, respectively.
18. The mesh network device of claim 16 , wherein the signal quality indicator is based on a sum of a product of the RSS and the PRR for each node; wherein the sum of the products is divided by the number of nodes in the mesh wireless network.
19. The mesh network device of claim 16 , wherein an alarm sounds when the signal quality indicator drops below a predetermined level.
20. The mesh network device of claim 16 , further comprising:
an NFC tag programmed with assignment information, wherein the assignment information is at least one of a location assignment for the NFC tag and an instrument operator assignment for the NFC tag;
wherein receipt of the assignment information at a safety device triggers activation of a function of the safety device.
21. The mesh network device of claim 16 , wherein:
the instrument monitors at least one of a peer alarm, a worker biometric datum or an area environmental datum; and
the instrument transmits the at least one peer alarm, worker biometric datum or area environmental datum for presentation on another instrument in the mesh wireless network.
22. A mesh network device for connecting to, sending and receiving information on a mesh wireless network comprising:
an instrument comprising at least one of an environmental sensing device, a hazard detection device, an industrial safety device, and a radio for transmitting and receiving information on the mesh wireless network; and
a display for presenting a signal quality indicator of a connection of the radio to other nodes of the mesh wireless network, the signal quality indicator derived from a combination of a received signal strength (RSS) and a packet receive ratio (PRR) of all instruments in the mesh wireless network,
wherein the signal quality indicator is based on a sum of a product of the RSS and the PRR for each node; wherein the sum of the products is divided by a number of nodes in the mesh wireless network.
23. The mesh network device of claim 22 , wherein the PRR is a counter that begins at a predetermined number and is incremented and decremented when expected packets are received or not received, respectively, and wherein the PRR is incremented and decremented by values of three and two, respectively.
24. The mesh network device of claim 22 , wherein an alarm sounds when the signal quality indicator drops below a predetermined level.
25. The mesh network device of claim 22 , further comprising:
an NFC tag programmed with assignment information, wherein the assignment information is at least one of a location assignment for the NFC tag and an instrument operator assignment for the NFC tag;
wherein receipt of the assignment information at a safety device triggers activation of a function of the safety device.
26. The mesh network device of claim 22 , wherein:
the instrument monitors at least one of a peer alarm, a worker biometric datum or an area environmental datum; and
the instrument transmits the at least one peer alarm, worker biometric datum or area environmental datum for presentation on another instrument in the mesh wireless network.
27. A mesh network device for connecting to, sending and receiving information on a mesh wireless network comprising:
an instrument comprising at least one of an environmental sensing device, a hazard detection device, an industrial safety device, and a radio for transmitting and receiving information on the mesh wireless network;
a display for presenting a signal quality indicator of a connection of the radio to other nodes of the mesh wireless network, the signal quality indicator derived from a combination of a received signal strength (RSS) and a packet receive ratio (PRR) of all instruments in the mesh wireless network; and
an NFC tag programmed with assignment information, wherein the assignment information is at least one of a location assignment for the NFC tag and an instrument operator assignment for the NFC tag,
wherein receipt of the assignment information at a safety device triggers activation of a function of the safety device.
28. The mesh network device of claim 27 , wherein the PRR is a counter that begins at a predetermined number and is incremented and decremented when expected packets are received or not received, respectively, and wherein the PRR is incremented and decremented by values of three and two, respectively.
29. The mesh network device of claim 27 , wherein an alarm sounds when the signal quality indicator drops below a predetermined level.
30. The mesh network device of claim 27 , wherein:
the instrument monitors at least one of a peer alarm, a worker biometric datum or an area environmental datum; and
the instrument transmits the at least one peer alarm, worker biometric datum or area environmental datum for presentation on another instrument in the mesh wireless network.