Power management system for a field device on a wireless network
First Claim
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1. A field device comprising:
- a network interface module for communicating over a wireless network;
a device interface module for operating a transducer; and
a power control for determining how available electrical power is shared by the network interface module and the device interface module so that the network interface module receives a greater share of available electrical power during a join process for joining the wireless network, and so that the device interface module has an increased share of available electrical power after the network interface module has joined the wireless network.
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Abstract
A field device includes a power control module, a network interface module that communicates over a wireless network, and a device interface module for operating transducers, such as a sensor or an actuator. The power control module controls distribution of electrical power so that the network interface module receives electrical power while it is attempting to join the wireless network. Once the network interface module has joined the wireless network, the power control module allows the network interface module and the device interface module to share electrical power.
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Citations
20 Claims
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1. A field device comprising:
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a network interface module for communicating over a wireless network; a device interface module for operating a transducer; and a power control for determining how available electrical power is shared by the network interface module and the device interface module so that the network interface module receives a greater share of available electrical power during a join process for joining the wireless network, and so that the device interface module has an increased share of available electrical power after the network interface module has joined the wireless network. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A field device comprising:
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a wireless transceiver for transmitting messages to and receiving messages from a wireless network. a network interface module for controlling operation of the wireless transceiver; a transducer; a device interface module for controlling operation of the transducer; a power source; and a power control module for controlling how power from the power source is shared by the network interface module and the device interface module depending on whether the network interface module has an established network connection to the wireless network. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of operating a field device including a power source, a wireless transceiver, a transducer, a network interface module and a device interface module, the method comprising:
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determining whether the network interface module is connected to a wireless network through the wireless transceiver; and sharing available power from the power source between the network interface module and the device interface module based upon whether the network interface module is connected to the wireless network. - View Dependent Claims (18, 19, 20)
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Specification