Abstract: A system for monitoring a wireless network is provided. The system includes a security network including a plurality of monitoring devices coupled to a centralized security manager. The security network is operable to manage access to a data network associated with a plurality of authorized devices. Each monitoring device is operable to receive packets communicated from one or more wireless device and communicate one or more of the packets to the centralized security manager. Each packet is associated with a communication session. The centralized security manager is operable to receive and analyze the one or more packets communicated from each monitoring device. The centralized security manager is further operable to determine whether a particular communication session is valid based on the analysis of at least one particular packet associated with a particular wireless device, and to communicate an alert if the particular communication session is not valid.

Abstract: A device indicates the level of concrete within the hopper of a concrete pump and prevent accidental overflow and spills. The concrete level indicator device includes an elongate post with an enlarge float fixed to the bottom end and a guide sleeve for allowing vertical telescoping movement of the post as the concrete level in this hopper changes. A retaining collar attaches to a screen in the hopper of the pump and surrounds the guide sleeve for limiting swinging movement of the post and guide sleeve, thereby maintaining the device in a vertical position within the hopper with the float resting on the concrete. As concrete is filled into the hopper, the post rises through the guide sleeve until a visual indicator (e.g. a red band) on the top end of the post is visibly exposed above the guide sleeve, thereby alerting the operator to interrupt the discharge of concrete being filled in the hopper until the concrete level drops and the visible indicator on the post is no longer visible.

Abstract: A system for monitoring a wireless network is provided. The system includes a security network including a plurality of monitoring devices coupled to a centralized security manager. The security network is operable to manage access to a data network associated with a plurality of authorized devices. Each monitoring device is operable to receive packets communicated from one or more wireless device and communicate one or more of the packets to the centralized security manager. Each packet is associated with a communication session. The centralized security manager is operable to receive and analyze the one or more packets communicated from each monitoring device. The centralized security manager is further operable to determine whether a particular communication session is valid based on the analysis of at least one particular packet associated with a particular wireless device, and to communicate an alert if the particular communication session is not valid.